libhttp-headers-actionpack-perl — security advisory

{
  "id": "ad7a853e8f38e023de73452fe2934e9802f250e21df97406ed881e3583896897",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-113877",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-113877",
    "summary": "HTTP::Headers::ActionPack versions before 0.10 for Perl allow CPU exhaustion via Accept-Language ranges matched as regular expressions. _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. A remote attacker can exhaust CPU, or make choose_language die, in any application that passes an untrusted Accept-Language header to it.",
    "evidence": "osv:DEBIAN-CVE-2026-113877",
    "products": [
      {
        "name": {
          "value": "libhttp-headers-actionpack-perl",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.09-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.09-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.09-4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.10-1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libhttp-headers-actionpack-perl",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.09-3",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "0.09-4",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "0.10-1",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "libhttp-headers-actionpack-perl",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0.10-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "0.09-3",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "0.09-4",
            "evidence": "/affected/2/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "DEBIAN-CVE-2026-113877",
      "aliases": [
        "DEBIAN-CVE-2026-113877"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "libhttp-headers-actionpack-perl",
            "purl": "pkg:deb/debian/libhttp-headers-actionpack-perl?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "0.09-2",
            "0.09-3",
            "0.09-4",
            "0.10-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-113877.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "libhttp-headers-actionpack-perl",
            "purl": "pkg:deb/debian/libhttp-headers-actionpack-perl?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "0.09-3",
            "0.09-4",
            "0.10-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-113877.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0.10-1"
                }
              ]
            }
          ],
          "package": {
            "name": "libhttp-headers-actionpack-perl",
            "purl": "pkg:deb/debian/libhttp-headers-actionpack-perl?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "0.09-3",
            "0.09-4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-113877.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-27T09:47:42.856138598Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-113877"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-113877"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-113877",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 461471,
  "published_at": "2026-10-23T21:17:21.597+00:00"
}