Vulnerability-Lookup

RHSA-2026:29182

Vulnerability from csaf_redhat - Published: 2026-06-24 19:27 - Updated: 2026-06-29 18:18

Summary

Red Hat Security Advisory: perl-IO-Compress security update

Severity

Important

Notes

Topic: An update for perl-IO-Compress is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details: This distribution provides a Perl interface to allow reading and writing of compressed data created with the zlib and bzip2 libraries. IO-Compress supports reading and writing of bzip2, RFC 1950, RFC 1951, RFC 1952 (i.e. gzip) and zip files/buffers. The following modules used to be distributed separately, but are now included with the IO-Compress distribution: * Compress-Zlib * IO-Compress-Zlib * IO-Compress-Bzip2 * IO-Compress-Base Security Fix(es): * perl-IO-Compress: perl-IO-Compress: Arbitrary code execution via attacker-controlled output glob (CVE-2026-48962) 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.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2026-48962

A flaw was found in perl-IO-Compress, a component used for data compression and decompression. A remote attacker could exploit this vulnerability by crafting a malicious input, specifically an output glob, that bypasses the intended security measures. This could lead to the execution of unauthorized code on the system, potentially allowing the attacker to take full control of the affected process.

7.8 (High)


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

CWE-94 - Improper Control of Generation of Code ('Code Injection')

Affected products

Fixed 2 products

Product	Identifier	Version	Remediation
Unresolved product id: AppStream-9.4.0.Z.E4S:perl-IO-Compress-0:2.102-4.el9_4.1.noarch		—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.4.0.Z.E4S:perl-IO-Compress-0:2.102-4.el9_4.1.src		—	Vendor Fix fix Workaround

Threats

Impact Important

References

10 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:29182	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=2481767	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-48962	self
https://bugzilla.redhat.com/show_bug.cgi?id=2481767	external
https://www.cve.org/CVERecord?id=CVE-2026-48962	external
https://nvd.nist.gov/vuln/detail/CVE-2026-48962	external
https://github.com/pmqs/IO-Compress/commit/f2db24…	external
https://metacpan.org/release/PMQS/IO-Compress-2.2…	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update for perl-IO-Compress is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "This distribution provides a Perl interface to allow reading and writing of compressed data created with the zlib and bzip2 libraries.  IO-Compress supports reading and writing of bzip2, RFC 1950, RFC 1951, RFC 1952 (i.e. gzip) and zip files/buffers.  The following modules used to be distributed separately, but are now included with the IO-Compress distribution:\n* Compress-Zlib\n* IO-Compress-Zlib\n* IO-Compress-Bzip2\n* IO-Compress-Base\n\nSecurity Fix(es):\n\n* perl-IO-Compress: perl-IO-Compress: Arbitrary code execution via attacker-controlled output glob (CVE-2026-48962)\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.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2026:29182",
        "url": "https://access.redhat.com/errata/RHSA-2026:29182"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#important",
        "url": "https://access.redhat.com/security/updates/classification/#important"
      },
      {
        "category": "external",
        "summary": "2481767",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481767"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_29182.json"
      }
    ],
    "title": "Red Hat Security Advisory: perl-IO-Compress security update",
    "tracking": {
      "current_release_date": "2026-06-29T18:18:47+00:00",
      "generator": {
        "date": "2026-06-29T18:18:47+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "5.2.6"
        }
      },
      "id": "RHSA-2026:29182",
      "initial_release_date": "2026-06-24T19:27:13+00:00",
      "revision_history": [
        {
          "date": "2026-06-24T19:27:13+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-06-24T19:27:13+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2026-06-29T18:18:47+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux AppStream E4S (v.9.4)",
                "product": {
                  "name": "Red Hat Enterprise Linux AppStream E4S (v.9.4)",
                  "product_id": "AppStream-9.4.0.Z.E4S",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:rhel_e4s:9.4::appstream"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Enterprise Linux"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "perl-IO-Compress-0:2.102-4.el9_4.1.noarch",
                "product": {
                  "name": "perl-IO-Compress-0:2.102-4.el9_4.1.noarch",
                  "product_id": "perl-IO-Compress-0:2.102-4.el9_4.1.noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/perl-IO-Compress@2.102-4.el9_4.1?arch=noarch"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "noarch"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "perl-IO-Compress-0:2.102-4.el9_4.1.src",
                "product": {
                  "name": "perl-IO-Compress-0:2.102-4.el9_4.1.src",
                  "product_id": "perl-IO-Compress-0:2.102-4.el9_4.1.src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/perl-IO-Compress@2.102-4.el9_4.1?arch=src"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "perl-IO-Compress-0:2.102-4.el9_4.1.noarch as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)",
          "product_id": "AppStream-9.4.0.Z.E4S:perl-IO-Compress-0:2.102-4.el9_4.1.noarch"
        },
        "product_reference": "perl-IO-Compress-0:2.102-4.el9_4.1.noarch",
        "relates_to_product_reference": "AppStream-9.4.0.Z.E4S"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "perl-IO-Compress-0:2.102-4.el9_4.1.src as a component of Red Hat Enterprise Linux AppStream E4S (v.9.4)",
          "product_id": "AppStream-9.4.0.Z.E4S:perl-IO-Compress-0:2.102-4.el9_4.1.src"
        },
        "product_reference": "perl-IO-Compress-0:2.102-4.el9_4.1.src",
        "relates_to_product_reference": "AppStream-9.4.0.Z.E4S"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-48962",
      "cwe": {
        "id": "CWE-94",
        "name": "Improper Control of Generation of Code (\u0027Code Injection\u0027)"
      },
      "discovery_date": "2026-05-27T04:01:00.966244+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2481767"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in perl-IO-Compress, a component used for data compression and decompression. A remote attacker could exploit this vulnerability by crafting a malicious input, specifically an output glob, that bypasses the intended security measures. This could lead to the execution of unauthorized code on the system, potentially allowing the attacker to take full control of the affected process.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "perl-IO-Compress: perl-IO-Compress: Arbitrary code execution via attacker-controlled output glob",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This is an Important severity flaw in `perl-IO-Compress` that allows arbitrary code execution. A remote attacker can exploit a vulnerability in the `File::GlobMapper` component by providing a specially crafted output glob. This can lead to the execution of arbitrary Perl code with the privileges of the affected process, potentially compromising the system.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "AppStream-9.4.0.Z.E4S:perl-IO-Compress-0:2.102-4.el9_4.1.noarch",
          "AppStream-9.4.0.Z.E4S:perl-IO-Compress-0:2.102-4.el9_4.1.src"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-48962"
        },
        {
          "category": "external",
          "summary": "RHBZ#2481767",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481767"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-48962",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-48962"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-48962",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48962"
        },
        {
          "category": "external",
          "summary": "https://github.com/pmqs/IO-Compress/commit/f2db247bf90d4cc7ee2710be384946081f3b4610.patch",
          "url": "https://github.com/pmqs/IO-Compress/commit/f2db247bf90d4cc7ee2710be384946081f3b4610.patch"
        },
        {
          "category": "external",
          "summary": "https://metacpan.org/release/PMQS/IO-Compress-2.220/changes",
          "url": "https://metacpan.org/release/PMQS/IO-Compress-2.220/changes"
        }
      ],
      "release_date": "2026-05-27T03:12:38.974000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-24T19:27:13+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "AppStream-9.4.0.Z.E4S:perl-IO-Compress-0:2.102-4.el9_4.1.noarch",
            "AppStream-9.4.0.Z.E4S:perl-IO-Compress-0:2.102-4.el9_4.1.src"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:29182"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
          "product_ids": [
            "AppStream-9.4.0.Z.E4S:perl-IO-Compress-0:2.102-4.el9_4.1.noarch",
            "AppStream-9.4.0.Z.E4S:perl-IO-Compress-0:2.102-4.el9_4.1.src"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "AppStream-9.4.0.Z.E4S:perl-IO-Compress-0:2.102-4.el9_4.1.noarch",
            "AppStream-9.4.0.Z.E4S:perl-IO-Compress-0:2.102-4.el9_4.1.src"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "perl-IO-Compress: perl-IO-Compress: Arbitrary code execution via attacker-controlled output glob"
    }
  ]
}

CVE-2026-48962 (GCVE-0-2026-48962)

Vulnerability from cvelistv5 – Published: 2026-05-27 03:12 – Updated: 2026-05-27 16:02

Title

IO::Compress versions before 2.220 for Perl can execute arbitrary code in File::GlobMapper via an attacker-controlled output glob

Summary

IO::Compress versions before 2.220 for Perl can execute arbitrary code in File::GlobMapper via an attacker-controlled output glob. _parseOutputGlob() wraps the caller-supplied output glob string in double quotes and stores it in the parser state; _getFiles() then runs the stored expression through eval STRING. A literal double quote in the output glob closes the dquote wrapper, and the characters that follow are evaluated as Perl. Arbitrary Perl in the output glob executes at the calling process's privilege.

Severity

7.3 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

Assigner

CPANSec

References

3 references

URL	Tags
https://github.com/pmqs/IO-Compress/commit/f2db24…	patch
https://metacpan.org/release/PMQS/IO-Compress-2.2…	release-notes
http://www.openwall.com/lists/oss-security/2026/05/27/4

Impacted products

1 product

Vendor	Product	Version
PMQS	IO::Compress	Affected: 0 , < 2.220 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-05-27T07:24:58.630Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/05/27/4"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "LOW",
              "baseScore": 7.3,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-48962",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-27T16:01:45.845766Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-27T16:02:15.210Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "IO-Compress",
          "product": "IO::Compress",
          "programFiles": [
            "lib/File/GlobMapper.pm"
          ],
          "programRoutines": [
            {
              "name": "File::GlobMapper::_parseOutputGlob"
            },
            {
              "name": "File::GlobMapper::_getFiles"
            }
          ],
          "repo": "https://github.com/pmqs/IO-Compress",
          "vendor": "PMQS",
          "versions": [
            {
              "lessThan": "2.220",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "IO::Compress versions before 2.220 for Perl can execute arbitrary code in File::GlobMapper via an attacker-controlled output glob.\n\n_parseOutputGlob() wraps the caller-supplied output glob string in double quotes and stores it in the parser state; _getFiles() then runs the stored expression through eval STRING. A literal double quote in the output glob closes the dquote wrapper, and the characters that follow are evaluated as Perl.\n\nArbitrary Perl in the output glob executes at the calling process\u0027s privilege."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-95",
              "description": "CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code (\u0027Eval Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-27T03:12:38.974Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/pmqs/IO-Compress/commit/f2db247bf90d4cc7ee2710be384946081f3b4610.patch"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/PMQS/IO-Compress-2.220/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to IO-Compress 2.220 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-05-14T00:00:00.000Z",
          "value": "Issue reported."
        },
        {
          "lang": "en",
          "time": "2026-05-16T00:00:00.000Z",
          "value": "Version 2.220 released."
        }
      ],
      "title": "IO::Compress versions before 2.220 for Perl can execute arbitrary code in File::GlobMapper via an attacker-controlled output glob",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-48962",
    "datePublished": "2026-05-27T03:12:38.974Z",
    "dateReserved": "2026-05-26T18:09:32.365Z",
    "dateUpdated": "2026-05-27T16:02:15.210Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

RHSA-2026:29182

CVE-2026-48962 (GCVE-0-2026-48962)

Tags

Sightings

Nomenclature