Vulnerability-Lookup

CVE-2026-8700 (GCVE-0-2026-8700)

Vulnerability from cvelistv5 – Published: 2026-05-15 22:10 – Updated: 2026-05-18 15:04

Title

Crypt::DSA versions before 1.20 for Perl generate seeds using rand

Summary

Crypt::DSA versions before 1.20 for Perl generate seeds using rand. Seeds were generated using Perl's built-in rand function, which is predictable and unsuitable for security usage.

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 · CISA-ADP (v2.0.3)

Decision recorded 2026-05-18 15:03 UTC

CWE

CWE-331 - Insufficient Entropy

Assigner

CPANSec redhat root

References

3 references

URL	Tags
https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1…	release-notes
https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1…
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version	CPE status
TIMLEGGE	Crypt::DSA	Affected: 0 , < 1.20 (custom)	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-8700

Vulnerability from fkie_nvd - Published: 2026-05-15 22:16 - Updated: 2026-06-17 11:04

Severity

7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Summary

Crypt::DSA versions before 1.20 for Perl generate seeds using rand. Seeds were generated using Perl's built-in rand function, which is predictable and unsuitable for security usage.

References

	URL	Tags
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1.20/changes
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1.20/diff/TIMLEGGE/Crypt-DSA-1.19#lib/Crypt/DSA/KeyChain.pm
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/05/15/26

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Crypt-DSA",
          "product": "Crypt::DSA",
          "programFiles": [
            "lib/Crypt/DSA/KeyChain.pm"
          ],
          "programRoutines": [
            {
              "name": "Crypt::DSA::generate_params"
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              "version": "0",
              "versionType": "custom"
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  "lastModified": "2026-06-17T11:04:18.220",
  "metrics": {
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          "attackComplexity": "LOW",
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      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1.20/changes"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
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      "type": "Secondary"
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}

GHSA-R2Q3-HJC8-7X6Q

Vulnerability from github – Published: 2026-05-16 00:31 – Updated: 2026-05-16 03:31

Details

Crypt::DSA versions before 1.20 for Perl generate seeds using rand.

Seeds were generated using Perl's built-in rand function, which is predictable and unsuitable for security usage.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-8700"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-331"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-15T22:16:57Z",
    "severity": null
  },
  "details": "Crypt::DSA versions before 1.20 for Perl generate seeds using rand.\n\nSeeds were generated using Perl\u0027s built-in rand function, which is predictable and unsuitable for security usage.",
  "id": "GHSA-r2q3-hjc8-7x6q",
  "modified": "2026-05-16T03:31:27Z",
  "published": "2026-05-16T00:31:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8700"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1.20/changes"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1.20/diff/TIMLEGGE/Crypt-DSA-1.19#lib/Crypt/DSA/KeyChain.pm"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/15/26"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

UBUNTU-CVE-2026-8700 (CVE-2026-8700)

Vulnerability from osv_ubuntu – Published: 2026-05-15 22:16 – Updated: 2026-05-15 22:16 – Source website

Details

Crypt::DSA versions before 1.20 for Perl generate seeds using rand. Seeds were generated using Perl's built-in rand function, which is predictable and unsuitable for security usage.

Severity

7.3 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-8700	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-8700	REPORT
	https://lists.security.metacpan.org/cve-announce/…	REPORT
	https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1…	REPORT
	https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1…	REPORT
	http://www.openwall.com/lists/oss-security/2026/0…	REPORT

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{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-dsa-perl",
            "binary_version": "1.17-4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libcrypt-dsa-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-dsa-perl@1.17-4?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.17-3",
        "1.17-4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-dsa-perl",
            "binary_version": "1.17-4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libcrypt-dsa-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-dsa-perl@1.17-4?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.17-4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-dsa-perl",
            "binary_version": "1.17-4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libcrypt-dsa-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-dsa-perl@1.17-4?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.17-4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-dsa-perl",
            "binary_version": "1.17-4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libcrypt-dsa-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-dsa-perl@1.17-4?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.17-4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-dsa-perl",
            "binary_version": "1.17-5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libcrypt-dsa-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-dsa-perl@1.17-5?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.17-5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-dsa-perl",
            "binary_version": "1.19-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libcrypt-dsa-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-dsa-perl@1.19-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.19-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcrypt-dsa-perl",
            "binary_version": "1.19-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libcrypt-dsa-perl",
        "purl": "pkg:deb/ubuntu/libcrypt-dsa-perl@1.19-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.19-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Crypt::DSA versions before 1.20 for Perl generate seeds using rand. Seeds were generated using Perl\u0027s built-in rand function, which is predictable and unsuitable for security usage.",
  "id": "UBUNTU-CVE-2026-8700",
  "modified": "2026-05-15T22:16:00Z",
  "published": "2026-05-15T22:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-8700"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-8700"
    },
    {
      "type": "REPORT",
      "url": "https://lists.security.metacpan.org/cve-announce/msg/40104301/"
    },
    {
      "type": "REPORT",
      "url": "https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1.20/changes"
    },
    {
      "type": "REPORT",
      "url": "https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1.20/diff/TIMLEGGE/Crypt-DSA-1.19#lib/Crypt/DSA/KeyChain.pm"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/15/26"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-8700"
  ]
}

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.

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-2026-8700 (GCVE-0-2026-8700)

FKIE_CVE-2026-8700

GHSA-R2Q3-HJC8-7X6Q

UBUNTU-CVE-2026-8700 (CVE-2026-8700)

Tags

Sightings

Nomenclature

Related by attack behaviour