Vulnerability-Lookup

CVE-2026-5704 (GCVE-0-2026-5704)

Vulnerability from cvelistv5 – Published: 2026-04-06 15:17 – Updated: 2026-09-10 22:01

Title

Tar: tar: hidden file injection via crafted archives

Summary

A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading to hidden file injection with fully attacker-controlled content. This bypasses pre-extraction inspection mechanisms, potentially allowing an attacker to introduce malicious files onto a system without detection.

Severity

5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-07 15:48 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

redhat redhat root

References

10 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:61581	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:61586	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:61783	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:66018	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:66514	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-5704	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2455360	issue-trackingx_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2026/0…
http://www.openwall.com/lists/oss-security/2026/0…
http://www.openwall.com/lists/oss-security/2026/04/12/2

Impacted products

12 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 2:1.35-13.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 2:1.34-13.el9_8 , < * (rpm) cpe:/o:redhat:enterprise_linux:9::baseos
Red Hat	Red Hat Discovery 2	Unaffected: 1788205779 , < * (rpm) cpe:/a:redhat:discovery:2::el9
Red Hat	Red Hat Hardened Images	Unaffected: 1.35-10.hum1 , < * (rpm) cpe:/a:redhat:hummingbird:1
Red Hat	Red Hat Update Infrastructure 5	Unaffected: 1788880445 , < * (rpm) cpe:/a:redhat:rhui:5::el9
Red Hat	Red Hat Update Infrastructure 5	Unaffected: 1788880464 , < * (rpm) cpe:/a:redhat:rhui:5::el9
Red Hat	Red Hat Update Infrastructure 5	Unaffected: 1788880456 , < * (rpm) cpe:/a:redhat:rhui:5::el9
Red Hat	Red Hat Update Infrastructure 5	Unaffected: 1788765051 , < * (rpm) cpe:/a:redhat:rhui:5::el9
Red Hat	Red Hat Update Infrastructure 5	Unaffected: 1788880581 , < * (rpm) cpe:/a:redhat:rhui:5::el9
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8

Date Public

2026-04-06 13:36

Credits

Red Hat would like to thank Guillermo de Angel Garcia for reporting this issue.

Show details on NVD website

JSON

To clipboard

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      "product_status:known_affected": "4",
      "product_status:known_not_affected": "2",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "tar: tar: Hidden file injection via crafted archives",
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}

alsa-2026:61581

Vulnerability from osv_almalinux

Published

2026-08-31 00:00

Modified

2026-09-01 08:33

Summary

Moderate: tar security, bug fix, and enhancement update

Details

The GNU tar program can save multiple files in an archive and restore files from an archive.

Security Fix(es):

tar: tar: Hidden file injection via crafted archives (CVE-2026-5704)
tar: tar: TOCTOU in incremental dumpdir 'X' rename handling allows restore path escape (CVE-2026-18477)
tar: tar: --one-top-level hardlink targets not confined to top-level directory enabling arbitrary file overwrite (CVE-2026-18508)

Bug Fix(es) and Enhancement(s):

tar: --one-top-level with absolute path fails [almalinux-9] (JIRA:AlmaLinux-144021)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2026:61581	ADVISORY
	https://access.redhat.com/security/cve/CVE-2026-18477	REPORT
	https://access.redhat.com/security/cve/CVE-2026-18508	REPORT
	https://access.redhat.com/security/cve/CVE-2026-5704	REPORT
	https://bugzilla.redhat.com/2455360	REPORT
	https://bugzilla.redhat.com/2509735	REPORT
	https://bugzilla.redhat.com/2509843	REPORT
	https://errata.almalinux.org/9/ALSA-2026-61581.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "tar"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:1.34-13.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The GNU tar program can save multiple files in an archive and restore files from an archive.  \n\nSecurity Fix(es):  \n\n  * tar: tar: Hidden file injection via crafted archives (CVE-2026-5704)\n  * tar: tar: TOCTOU in incremental dumpdir \u0027X\u0027 rename handling allows restore path escape (CVE-2026-18477)\n  * tar: tar: --one-top-level hardlink targets not confined to top-level directory enabling arbitrary file overwrite (CVE-2026-18508)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * tar: --one-top-level with absolute path fails [almalinux-9] (JIRA:AlmaLinux-144021)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2026:61581",
  "modified": "2026-09-01T08:33:19Z",
  "published": "2026-08-31T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:61581"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-18477"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-18508"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-5704"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2455360"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2509735"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2509843"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/9/ALSA-2026-61581.html"
    }
  ],
  "related": [
    "CVE-2026-5704",
    "CVE-2026-18477",
    "CVE-2026-18508"
  ],
  "summary": "Moderate: tar security, bug fix, and enhancement update"
}

alsa-2026:61586

Vulnerability from osv_almalinux

Published

2026-08-31 00:00

Modified

2026-09-02 08:33

Summary

Moderate: tar security, bug fix, and enhancement update

Details

The GNU tar program can save multiple files in an archive and restore files from an archive.

Security Fix(es):

tar: tar: Hidden file injection via crafted archives (CVE-2026-5704)
tar: tar: TOCTOU in incremental dumpdir 'X' rename handling allows restore path escape (CVE-2026-18477)
tar: tar: --one-top-level hardlink targets not confined to top-level directory enabling arbitrary file overwrite (CVE-2026-18508)

Bug Fix(es) and Enhancement(s):

tar: --one-top-level with absolute path fails (JIRA:AlmaLinux-143906)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2026:61586	ADVISORY
	https://access.redhat.com/security/cve/CVE-2026-18477	REPORT
	https://access.redhat.com/security/cve/CVE-2026-18508	REPORT
	https://access.redhat.com/security/cve/CVE-2026-5704	REPORT
	https://bugzilla.redhat.com/2455360	REPORT
	https://bugzilla.redhat.com/2509735	REPORT
	https://bugzilla.redhat.com/2509843	REPORT
	https://errata.almalinux.org/10/ALSA-2026-61586.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "tar"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:1.35-13.el10_2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The GNU tar program can save multiple files in an archive and restore files from an archive.  \n\nSecurity Fix(es):  \n\n  * tar: tar: Hidden file injection via crafted archives (CVE-2026-5704)\n  * tar: tar: TOCTOU in incremental dumpdir \u0027X\u0027 rename handling allows restore path escape (CVE-2026-18477)\n  * tar: tar: --one-top-level hardlink targets not confined to top-level directory enabling arbitrary file overwrite (CVE-2026-18508)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * tar: --one-top-level with absolute path fails (JIRA:AlmaLinux-143906)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2026:61586",
  "modified": "2026-09-02T08:33:31Z",
  "published": "2026-08-31T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:61586"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-18477"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-18508"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-5704"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2455360"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2509735"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2509843"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/10/ALSA-2026-61586.html"
    }
  ],
  "related": [
    "CVE-2026-5704",
    "CVE-2026-18477",
    "CVE-2026-18508"
  ],
  "summary": "Moderate: tar security, bug fix, and enhancement update"
}

FKIE_CVE-2026-5704

Vulnerability from fkie_nvd - Published: 2026-04-06 16:16 - Updated: 2026-09-10 22:16

Severity

5.0 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Summary

References

URL	Tags
secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:61581
secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:61586
secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:61783
secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:66018
secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:66514
secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2026-5704	Third Party Advisory
secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2455360	Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/04/11/10	Exploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/04/11/11	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/04/12/2	Exploit, Mailing List, Third Party Advisory

Impacted products

Vendor	Product	Version
gnu	tar	-
redhat	hardened_images	-
redhat	enterprise_linux	6.0
redhat	enterprise_linux	7.0
redhat	enterprise_linux	8.0
redhat	enterprise_linux	9.0
redhat	enterprise_linux	10.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10.2"
          ],
          "defaultStatus": "affected",
          "packageName": "tar",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "2:1.35-13.el10_2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:9::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "tar",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "2:1.34-13.el9_8",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:discovery:2::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "discovery/discovery-server-rhel9",
          "product": "Red Hat Discovery 2",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1788205779",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:hummingbird:1"
          ],
          "defaultStatus": "affected",
          "packageName": "tar-main",
          "product": "Red Hat Hardened Images",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1.35-10.hum1",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:rhui:5::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhui5/cds-kubernetes-rhel9",
          "product": "Red Hat Update Infrastructure 5",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1788880445",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:rhui:5::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhui5/cds-rhel9",
          "product": "Red Hat Update Infrastructure 5",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1788880464",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:rhui:5::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhui5/haproxy-rhel9",
          "product": "Red Hat Update Infrastructure 5",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1788880456",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:rhui:5::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhui5/installer-rhel9",
          "product": "Red Hat Update Infrastructure 5",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1788765051",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:rhui:5::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "rhui5/rhua-rhel9",
          "product": "Red Hat Update Infrastructure 5",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1788880581",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:6"
          ],
          "defaultStatus": "affected",
          "packageName": "tar",
          "product": "Red Hat Enterprise Linux 6",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:7"
          ],
          "defaultStatus": "affected",
          "packageName": "tar",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:8"
          ],
          "defaultStatus": "affected",
          "packageName": "tar",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat"
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gnu:tar:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "F73E53BF-3144-42D0-8487-6FD8A79BE9A3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "87DEB507-5B64-47D7-9A50-3B87FD1E571F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "2F6AB192-9D7D-4A9A-8995-E53A9DE9EAFC",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "D65C2163-CFC2-4ABB-8F4E-CB09CEBD006C",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading to hidden file injection with fully attacker-controlled content. This bypasses pre-extraction inspection mechanisms, potentially allowing an attacker to introduce malicious files onto a system without detection."
    }
  ],
  "id": "CVE-2026-5704",
  "lastModified": "2026-09-10T22:16:58.033",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.3,
        "impactScore": 3.6,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-5704",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-07T15:48:15.196926Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-06T16:16:42.140",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:61581"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:61586"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:61783"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:66018"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:66514"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://access.redhat.com/security/cve/CVE-2026-5704"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2455360"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2026/04/11/10"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2026/04/11/11"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2026/04/12/2"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}

GHSA-JQQW-37X4-9RWJ

Vulnerability from github – Published: 2026-04-06 18:33 – Updated: 2026-09-11 00:31

Details

Severity

5.0 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-5704"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-434"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-06T16:16:42Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading to hidden file injection with fully attacker-controlled content. This bypasses pre-extraction inspection mechanisms, potentially allowing an attacker to introduce malicious files onto a system without detection.",
  "id": "GHSA-jqqw-37x4-9rwj",
  "modified": "2026-09-11T00:31:12Z",
  "published": "2026-04-06T18:33:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5704"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:61581"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:61586"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:61783"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:66018"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:66514"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-5704"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2455360"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/11/10"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/11/11"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/12/2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

MSRC_CVE-2026-5704

Vulnerability from csaf_microsoft - Published: 2026-09-02 01:03 - Updated: 2026-09-12 01:48

Summary

Tar: tar: hidden file injection via crafted archives

Scope

1 vulnerability in this advisory, including CVE-2026-5704.

CVE-2026-5704

5.0 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

Known affected: 1 product

Open the full advisory

OPENSUSE-SU-2026:11125-1

Vulnerability from csaf_opensuse - Published: 2026-06-25 00:00 - Updated: 2026-06-25 00:00

Summary

tar-1.35-8.1 on GA media

Severity

Moderate

Scope

1 vulnerability in this advisory, including CVE-2026-5704.

CVE-2026-5704

5.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Recommended: 24 products

Open the full advisory

RHSA-2026:61581

Vulnerability from csaf_redhat - Published: 2026-08-31 14:39 - Updated: 2026-09-10 22:01

Summary

Red Hat Security Advisory: tar security, bug fix, and enhancement update

Severity

Moderate

Scope

3 vulnerabilities in this advisory, including CVE-2026-5704.

CVE-2026-5704

5.0 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

Fixed: 13 products

https://access.redhat.com/errata/RHSA-2026:61581

Open the full advisory

RHSA-2026:61586

Vulnerability from csaf_redhat - Published: 2026-09-01 07:57 - Updated: 2026-09-10 22:01

Summary

Red Hat Security Advisory: tar security, bug fix, and enhancement update

Severity

Moderate

Scope

3 vulnerabilities in this advisory, including CVE-2026-5704.

CVE-2026-5704

5.0 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

Fixed: 13 products

https://access.redhat.com/errata/RHSA-2026:61586

Open the full advisory

RHSA-2026:61783

Vulnerability from csaf_redhat - Published: 2026-08-31 21:39 - Updated: 2026-09-16 19:14

Summary

Red Hat Security Advisory: A Subscription Management tool for finding and reporting Red Hat product usage

Severity

Important

Scope

42 vulnerabilities in this advisory, including CVE-2026-5704.

CVE-2026-5704

5.0 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

Fixed: 2 products Known not affected: 2 products

https://access.redhat.com/errata/RHSA-2026:61783

Open the full advisory

RHSA-2026:66018

Vulnerability from csaf_redhat - Published: 2026-09-09 14:32 - Updated: 2026-09-16 13:08

Summary

Red Hat Security Advisory: Red Hat Update Infrastructure 5.3 security update

Severity

Important

Scope

30 vulnerabilities in this advisory, including CVE-2026-5704.

CVE-2026-5704

5.0 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

Fixed: 5 products

https://access.redhat.com/errata/RHSA-2026:66018

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-5704 (GCVE-0-2026-5704)

Vulnerability from osv_almalinux

Vulnerability from osv_almalinux

Tags

Sightings

Nomenclature

Related by attack behaviour