{"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"}}]}}

{}

{"affected": [{"affectedData": [{"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"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "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."}], "id": "CVE-2026-113877", "lastModified": "2026-10-23T23:17:42.620", "metrics": {}, "published": "2026-10-23T21:17:21.597", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/robrwo/perl-HTTP-Headers-ActionPack/commit/77f0deb23f3de872c2e64befd72750e0f0f4bec9.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/RRWO/HTTP-Headers-ActionPack-0.10/changes"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/10/23/27"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-624"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}

{"created": "2026-10-23T21:45:14.444769+00:00", "updated": "2026-10-23T21:45:14.444774+00:00", "vendors": []}