Vulnerability-Lookup

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.

{
  "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": []
}

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 CNA under the redhat root

CNA scorecard C 64/100 over 265 records in the last 180 days details

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
TIMLEGGE	Crypt::DSA	Affected: 0 , < 1.20 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-05-16T00:31:19.834Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/05/15/26"
          }
        ],
        "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-2026-8700",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-18T15:03:59.437060Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-18T15:04:20.918Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "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"
            }
          ],
          "repo": "https://github.com/perl-Crypt-OpenPGP/Crypt-DSA.git",
          "vendor": "TIMLEGGE",
          "versions": [
            {
              "lessThan": "1.20",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
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          "lang": "en",
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          "descriptions": [
            {
              "cweId": "CWE-331",
              "description": "CWE-331 Insufficient Entropy",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-15T22:10:52.242Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1.20/changes"
        },
        {
          "url": "https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1.20/diff/TIMLEGGE/Crypt-DSA-1.19#lib/Crypt/DSA/KeyChain.pm"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to version 1.20 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-05-15T00:00:00.000Z",
          "value": "CPANSec identified issue"
        },
        {
          "lang": "en",
          "time": "2026-05-15T00:00:00.000Z",
          "value": "Author was notified"
        },
        {
          "lang": "en",
          "time": "2026-05-15T00:00:00.000Z",
          "value": "Version 1.20 released."
        }
      ],
      "title": "Crypt::DSA versions before 1.20 for Perl generate seeds using rand",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
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  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-8700",
    "datePublished": "2026-05-15T22:10:52.242Z",
    "dateReserved": "2026-05-15T17:20:11.254Z",
    "dateUpdated": "2026-05-18T15:04:20.918Z",
    "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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.
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