{"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"}}]}}