{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-10-23T23:06:45.441Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/10/23/27"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "HTTP::Headers::ActionPack"
          ],
          "packageName": "HTTP-Headers-ActionPack",
          "packageURL": "pkg:cpan/HTTP-Headers-ActionPack",
          "programFiles": [
            "lib/HTTP/Headers/ActionPack/ContentNegotiation.pm"
          ],
          "programRoutines": [
            {
              "name": "HTTP::Headers::ActionPack::ContentNegotiation::_language_match"
            },
            {
              "name": "HTTP::Headers::ActionPack::ContentNegotiation::choose_language"
            }
          ],
          "repo": "https://github.com/robrwo/perl-HTTP-Headers-ActionPack/",
          "versions": [
            {
              "lessThan": "0.10",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "HTTP::Headers::ActionPack versions before 0.10 for Perl allow CPU exhaustion via Accept-Language ranges matched as regular expressions.\n\n_language_match interpolates each Accept-Language range into the pattern `/^$range\\-/i` without escaping it, so regular expression syntax in the header reaches the regex engine. A 12-byte range such as `(a?|b?){26}z` backtracks for seconds, and each increment of the quantifier doubles the time. An invalid range such as `(` fails to compile.\n\nA remote attacker can exhaust CPU, or make choose_language die, in any application that passes an untrusted Accept-Language header to it."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-624",
              "description": "CWE-624 Executable Regular Expression Error",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-23T20:07:20.677Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/RRWO/HTTP-Headers-ActionPack-0.10/changes"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/robrwo/perl-HTTP-Headers-ActionPack/commit/77f0deb23f3de872c2e64befd72750e0f0f4bec9.patch"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to HTTP-Headers-ActionPack 0.10 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "HTTP::Headers::ActionPack versions before 0.10 for Perl allow CPU exhaustion via Accept-Language ranges matched as regular expressions",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-113877",
    "datePublished": "2026-10-23T20:07:20.677Z",
    "dateReserved": "2026-10-20T20:16:52.798Z",
    "dateUpdated": "2026-10-23T23:06:45.441Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}