Vulnerability-Lookup

GHSA-6W78-P685-P2F6

Vulnerability from github – Published: 2026-07-30 15:31 – Updated: 2026-07-30 18:31

Details

Date::Manip versions through 6.99 for Perl allow CPU exhaustion via quadratic backtracking in the unanchored time substitution in _parse_time.

_parse_time removes a time from anywhere in the string with the unanchored substitution s/$timerx/ /, where $timerx is an auto-generated alternation of time patterns reached through a leading (?:$atrx|^|\s+). The engine therefore retries the match at every position of an interior whitespace run: at each start position the leading \s+ consumes the rest of the run greedily, the time alternation fails because the run holds no digits, and the engine backtracks a space at a time across the run before advancing the start position, which is quadratic in the length of the run. No time need be present in the string for this to happen, only a long run of whitespace, and the parse time rises about fourfold for each doubling of the run: a few kilobytes of whitespace costs seconds of CPU per parse and tens of kilobytes costs minutes.

Any caller that passes an untrusted string of unbounded length to ParseDate(), Date::Manip::Date->parse() or ->parse_time() can be made to spend unbounded CPU in a single parse, a denial of service.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-60075"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-30T14:17:02Z",
    "severity": null
  },
  "details": "Date::Manip versions through 6.99 for Perl allow CPU exhaustion via quadratic backtracking in the unanchored time substitution in _parse_time.\n\n_parse_time removes a time from anywhere in the string with the unanchored substitution `s/$timerx/ /`, where $timerx is an auto-generated alternation of time patterns reached through a leading `(?:$atrx|^|\\s+)`. The engine therefore retries the match at every position of an interior whitespace run: at each start position the leading `\\s+` consumes the rest of the run greedily, the time alternation fails because the run holds no digits, and the engine backtracks a space at a time across the run before advancing the start position, which is quadratic in the length of the run. No time need be present in the string for this to happen, only a long run of whitespace, and the parse time rises about fourfold for each doubling of the run: a few kilobytes of whitespace costs seconds of CPU per parse and tens of kilobytes costs minutes.\n\nAny caller that passes an untrusted string of unbounded length to ParseDate(), Date::Manip::Date-\u003eparse() or -\u003eparse_time() can be made to spend unbounded CPU in a single parse, a denial of service.",
  "id": "GHSA-6w78-p685-p2f6",
  "modified": "2026-07-30T18:31:37Z",
  "published": "2026-07-30T15:31:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-60075"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/SBECK/Date-Manip-6.99/source/lib/Date/Manip/Date.pm#L1526"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/SBECK/Date-Manip-6.99/source/lib/Date/Manip/Date.pm#L1811"
    },
    {
      "type": "WEB",
      "url": "https://security.metacpan.org/patches/D/Date-Manip/6.99/CVE-2026-60075-r1.patch"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/07/30/20"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-60075 (GCVE-0-2026-60075)

Vulnerability from cvelistv5 – Published: 2026-07-30 13:42 – Updated: 2026-07-30 16:31

Title

Date::Manip versions through 6.99 for Perl allow CPU exhaustion via quadratic backtracking in the unanchored time substitution in _parse_time

Summary

Date::Manip versions through 6.99 for Perl allow CPU exhaustion via quadratic backtracking in the unanchored time substitution in _parse_time. _parse_time removes a time from anywhere in the string with the unanchored substitution `s/$timerx/ /`, where $timerx is an auto-generated alternation of time patterns reached through a leading `(?:$atrx|^|\s+)`. The engine therefore retries the match at every position of an interior whitespace run: at each start position the leading `\s+` consumes the rest of the run greedily, the time alternation fails because the run holds no digits, and the engine backtracks a space at a time across the run before advancing the start position, which is quadratic in the length of the run. No time need be present in the string for this to happen, only a long run of whitespace, and the parse time rises about fourfold for each doubling of the run: a few kilobytes of whitespace costs seconds of CPU per parse and tens of kilobytes costs minutes. Any caller that passes an untrusted string of unbounded length to ParseDate(), Date::Manip::Date->parse() or ->parse_time() can be made to spend unbounded CPU in a single parse, a denial of service.

Severity

No CVSS data available.

CWE

CWE-1333 - Inefficient Regular Expression Complexity

Assigner

CPANSec

References

4 references

URL	Tags
https://security.metacpan.org/patches/D/Date-Mani…	patch
https://metacpan.org/release/SBECK/Date-Manip-6.9…
https://metacpan.org/release/SBECK/Date-Manip-6.9…
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
SBECK	Date::Manip	Affected: 0 , ≤ 6.99 (custom)

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-07-30T16:31:42.201Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/07/30/20"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Date-Manip",
          "product": "Date::Manip",
          "programFiles": [
            "lib/Date/Manip/Date.pm"
          ],
          "programRoutines": [
            {
              "name": "Date::Manip::Date::_parse_time"
            },
            {
              "name": "Date::Manip::Date::_other_rx"
            },
            {
              "name": "Date::Manip::Date::parse"
            },
            {
              "name": "Date::Manip::Date::parse_time"
            },
            {
              "name": "Date::Manip::DM6::ParseDate"
            }
          ],
          "repo": "https://github.com/SBECK-github/Date-Manip",
          "vendor": "SBECK",
          "versions": [
            {
              "lessThanOrEqual": "6.99",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Date::Manip versions through 6.99 for Perl allow CPU exhaustion via quadratic backtracking in the unanchored time substitution in _parse_time.\n\n_parse_time removes a time from anywhere in the string with the unanchored substitution `s/$timerx/ /`, where $timerx is an auto-generated alternation of time patterns reached through a leading `(?:$atrx|^|\\s+)`. The engine therefore retries the match at every position of an interior whitespace run: at each start position the leading `\\s+` consumes the rest of the run greedily, the time alternation fails because the run holds no digits, and the engine backtracks a space at a time across the run before advancing the start position, which is quadratic in the length of the run. No time need be present in the string for this to happen, only a long run of whitespace, and the parse time rises about fourfold for each doubling of the run: a few kilobytes of whitespace costs seconds of CPU per parse and tens of kilobytes costs minutes.\n\nAny caller that passes an untrusted string of unbounded length to ParseDate(), Date::Manip::Date-\u003eparse() or -\u003eparse_time() can be made to spend unbounded CPU in a single parse, a denial of service."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333 Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-30T13:42:17.896Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://security.metacpan.org/patches/D/Date-Manip/6.99/CVE-2026-60075-r1.patch"
        },
        {
          "url": "https://metacpan.org/release/SBECK/Date-Manip-6.99/source/lib/Date/Manip/Date.pm#L1811"
        },
        {
          "url": "https://metacpan.org/release/SBECK/Date-Manip-6.99/source/lib/Date/Manip/Date.pm#L1526"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Date::Manip versions through 6.99 for Perl allow CPU exhaustion via quadratic backtracking in the unanchored time substitution in _parse_time",
      "workarounds": [
        {
          "lang": "en",
          "value": "No fixed release is available. Apply the patch, which rejects a string longer than 256 characters at the parse entries, or cap the length of untrusted input before parsing it; legitimate date strings are well under 100 characters."
        }
      ],
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-60075",
    "datePublished": "2026-07-30T13:42:17.896Z",
    "dateReserved": "2026-07-08T10:28:02.310Z",
    "dateUpdated": "2026-07-30T16:31:42.201Z",
    "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.

Action not permitted

GHSA-6W78-P685-P2F6

CVE-2026-60075 (GCVE-0-2026-60075)

Tags

Sightings

Nomenclature