{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-113877",
        "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "state": "PUBLISHED",
        "assignerShortName": "CPANSec",
        "dateReserved": "2026-10-20T20:16:52.798Z",
        "datePublished": "2026-10-23T20:07:20.677Z",
        "dateUpdated": "2026-10-23T23:06:45.441Z"
    },
    "containers": {
        "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": {
                "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
                "shortName": "CPANSec",
                "dateUpdated": "2026-10-23T20:07:20.677Z"
            },
            "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"
            }
        },
        "adp": [
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "http://www.openwall.com/lists/oss-security/2026/10/23/27"
                    }
                ],
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2026-10-23T23:06:45.441Z"
                }
            }
        ]
    }
}