Vulnerability-Lookup

BREW-PERL-BUILD-CVE-2026-82560 (CVE-2026-82560)

Vulnerability from osv_homebrew – Published: 2026-09-20 11:55 – Updated: 2026-09-20 11:55 – Source website

Summary

Pod::Text versions before 6.1.1 for Perl allow CPU and memory exhaustion formatting a POD document whose =over nesting drives the margin to the output width

Details

Pod::Text versions before 6.1.1 for Perl allow CPU and memory exhaustion formatting a POD document whose =over nesting drives the margin to the output width.

Each =over adds its indent to the margin, which wrap() subtracts from the output width to get the space available for text. When that space reaches zero, the line-splitting substitution matches the empty string, and the loop consumes no input while appending the margin padding on every pass.

Formatting an attacker-supplied POD document never returns, and the output grows until memory is exhausted.

References

URL

Type

	https://cpan.org/modules	WEB
	https://github.com/CVEProject/cvelistV5/tree/main…	ADVISORY
	https://github.com/Perl/perl5	PACKAGE
	https://github.com/rra/podlators	PACKAGE
	https://github.com/rra/podlators/commit/70510174f…	FIX
	https://metacpan.org/release/RRA/podlators-v6.1.0…	WEB
	https://metacpan.org/release/RRA/podlators-v6.1.1…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-82560	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": null,
        "range_state": "affected",
        "resource": "Pod::Text",
        "resource_purl": "pkg:cpan/RRA/podlators@5.01",
        "upstream_fixed_in": "6.1.1"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "perl-build",
        "purl": "pkg:brew/perl-build"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "medium",
    "source": "matched",
    "strategy": "cpansa",
    "upstream_evidence": [
      {
        "ecosystem": "CPAN",
        "key": "pkg:cpan/RRA/podlators@5.01",
        "name": "podlators",
        "resource": "Pod::Text",
        "strategy": "cpansa",
        "subject_version": "5.01"
      }
    ]
  },
  "details": "Pod::Text versions before 6.1.1 for Perl allow CPU and memory exhaustion formatting a POD document whose =over nesting drives the margin to the output width.\n\nEach =over adds its indent to the margin, which wrap() subtracts from the output width to get the space available for text. When that space reaches zero, the line-splitting substitution matches the empty string, and the loop consumes no input while appending the margin padding on every pass.\n\nFormatting an attacker-supplied POD document never returns, and the output grows until memory is exhausted.",
  "id": "BREW-perl-build-CVE-2026-82560",
  "modified": "2026-09-20T11:55:27Z",
  "published": "2026-09-20T11:55:27Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://cpan.org/modules"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82560.json"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Perl/perl5"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rra/podlators"
    },
    {
      "type": "FIX",
      "url": "https://github.com/rra/podlators/commit/70510174f69eb54aa6d617bde4e1402cd9b7c61f.patch"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/RRA/podlators-v6.1.0/source/lib/Pod/Text.pm#L245-261"
    },
    {
      "type": "ADVISORY",
      "url": "https://metacpan.org/release/RRA/podlators-v6.1.1/changes"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82560"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "Pod::Text versions before 6.1.1 for Perl allow CPU and memory exhaustion formatting a POD document whose =over nesting drives the margin to the output width",
  "upstream": [
    "CVE-2026-82560"
  ]
}

CVE-2026-82560 (GCVE-0-2026-82560)

Vulnerability from cvelistv5 – Published: 2026-09-19 15:15 – Updated: 2026-09-20 18:30

Title

Pod::Text versions before 6.1.1 for Perl allow CPU and memory exhaustion formatting a POD document whose =over nesting drives the margin to the output width

Summary

Pod::Text versions before 6.1.1 for Perl allow CPU and memory exhaustion formatting a POD document whose =over nesting drives the margin to the output width. Each =over adds its indent to the margin, which wrap() subtracts from the output width to get the space available for text. When that space reaches zero, the line-splitting substitution matches the empty string, and the loop consumes no input while appending the margin padding on every pass. Formatting an attacker-supplied POD document never returns, and the output grows until memory is exhausted.

Severity

No CVSS data available.

CWE

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

CPANSec redhat root

References

4 references

URL	Tags
https://metacpan.org/release/RRA/podlators-v6.1.0…
https://github.com/rra/podlators/commit/70510174f…	patch
https://metacpan.org/release/RRA/podlators-v6.1.1…	release-notes
http://www.openwall.com/lists/oss-security/2026/09/19/6

Impacted products

2 products

Vendor	Product	Version
		Affected: 0 , < 6.1.1 (custom)
		Affected: 0 , ≤ 5.45.2 (custom)

Credits

Jitka Plesnikova

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-09-19T20:07:17.026Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/09/19/6"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "Pod::Text"
          ],
          "packageName": "podlators",
          "packageURL": "pkg:cpan/podlators",
          "programFiles": [
            "lib/Pod/Text.pm",
            "lib/Pod/Text/Color.pm",
            "lib/Pod/Text/Overstrike.pm",
            "lib/Pod/Text/Termcap.pm"
          ],
          "programRoutines": [
            {
              "name": "Pod::Text::wrap"
            },
            {
              "name": "Pod::Text::Color::wrap"
            },
            {
              "name": "Pod::Text::Overstrike::wrap"
            },
            {
              "name": "Pod::Text::Termcap::wrap"
            }
          ],
          "repo": "https://github.com/rra/podlators",
          "versions": [
            {
              "lessThan": "6.1.1",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "Pod::Text"
          ],
          "packageName": "perl",
          "packageURL": "pkg:cpan/perl",
          "programFiles": [
            "cpan/podlators/lib/Pod/Text.pm",
            "cpan/podlators/lib/Pod/Text/Color.pm",
            "cpan/podlators/lib/Pod/Text/Overstrike.pm",
            "cpan/podlators/lib/Pod/Text/Termcap.pm"
          ],
          "programRoutines": [
            {
              "name": "Pod::Text::wrap"
            },
            {
              "name": "Pod::Text::Color::wrap"
            },
            {
              "name": "Pod::Text::Overstrike::wrap"
            },
            {
              "name": "Pod::Text::Termcap::wrap"
            }
          ],
          "repo": "https://github.com/Perl/perl5",
          "versions": [
            {
              "lessThanOrEqual": "5.45.2",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Jitka Plesnikova"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Pod::Text versions before 6.1.1 for Perl allow CPU and memory exhaustion formatting a POD document whose =over nesting drives the margin to the output width.\n\nEach =over adds its indent to the margin, which wrap() subtracts from the output width to get the space available for text. When that space reaches zero, the line-splitting substitution matches the empty string, and the loop consumes no input while appending the margin padding on every pass.\n\nFormatting an attacker-supplied POD document never returns, and the output grows until memory is exhausted."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-835",
              "description": "CWE-835 Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-20T18:30:05.466Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "url": "https://metacpan.org/release/RRA/podlators-v6.1.0/source/lib/Pod/Text.pm#L245-261"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/rra/podlators/commit/70510174f69eb54aa6d617bde4e1402cd9b7c61f.patch"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/RRA/podlators-v6.1.1/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to podlators v6.1.1 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Pod::Text versions before 6.1.1 for Perl allow CPU and memory exhaustion formatting a POD document whose =over nesting drives the margin to the output width",
      "workarounds": [
        {
          "lang": "en",
          "value": "Until a Perl release carries the fix, install podlators v6.1.1 or later, which takes precedence over the bundled copy."
        }
      ],
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-82560",
    "datePublished": "2026-09-19T15:15:52.620Z",
    "dateReserved": "2026-08-29T22:38:15.085Z",
    "dateUpdated": "2026-09-20T18:30:05.466Z",
    "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.

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.