Vulnerability-Lookup

BREW-CPANMINUS-CVE-2020-16154 (CVE-2020-16154)

Vulnerability from osv_homebrew – Published: 2026-08-13 16:41 – Updated: 2026-08-13 16:41 – Source website

Details

The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.

Severity

7.8 (High)


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

References

URL

Type

	https://lists.fedoraproject.org/archives/list/pac…	WEB
	https://metacpan.org/pod/App::cpanminus	ADVISORY
	https://blog.hackeriet.no/cpan-signature-verifica…	EVIDENCE

JSON

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{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "upstream_fixed_in": "1.7045"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "cpanminus",
        "purl": "pkg:brew/cpanminus"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.7049"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "git",
    "upstream_evidence": [
      {
        "ecosystem": "GIT",
        "key": "https://github.com/miyagawa/cpanminus",
        "name": "https://github.com/miyagawa/cpanminus",
        "strategy": "git",
        "subject_version": "1.7049"
      },
      {
        "ecosystem": "CPAN",
        "key": "pkg:cpan/MIYAGAWA/App-cpanminus@1.7049",
        "name": "App-cpanminus",
        "strategy": "cpansa",
        "subject_version": "1.7049"
      },
      {
        "ecosystem": "Debian",
        "key": "Debian/cpanminus",
        "name": "cpanminus",
        "strategy": "distro"
      },
      {
        "ecosystem": "GIT",
        "key": "upstream:https://github.com/miyagawa/cpanminus",
        "name": "https://github.com/miyagawa/cpanminus",
        "strategy": "distro",
        "subject_version": "1.7049"
      },
      {
        "ecosystem": "CPAN",
        "key": "upstream:pkg:cpan/MIYAGAWA/App-cpanminus@1.7049",
        "name": "App-cpanminus",
        "strategy": "distro",
        "subject_version": "1.7049"
      },
      {
        "ecosystem": "Ubuntu",
        "key": "Ubuntu/cpanminus",
        "name": "cpanminus",
        "strategy": "distro"
      }
    ]
  },
  "details": "The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.",
  "id": "BREW-cpanminus-CVE-2020-16154",
  "modified": "2026-08-13T16:41:11Z",
  "published": "2026-08-13T16:41:11Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DENFY4CRTIZL5WYYUYUM4VKCJNXO4QIW/"
    },
    {
      "type": "ADVISORY",
      "url": "https://metacpan.org/pod/App::cpanminus"
    },
    {
      "type": "EVIDENCE",
      "url": "https://blog.hackeriet.no/cpan-signature-verification-vulnerabilities/"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2020-16154"
  ]
}

CVE-2020-16154 (GCVE-0-2020-16154)

Vulnerability from cvelistv5 – Published: 2021-12-13 17:00 – Updated: 2024-08-04 13:37

Summary

The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://metacpan.org/pod/App::cpanminus	x_refsource_MISC
https://blog.hackeriet.no/cpan-signature-verifica…	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Show details on NVD website

JSON

To clipboard

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          },
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            ],
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          },
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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.