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CVE-2026-13221

UNKNOWN · CVSS N/A Public Exploit

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-07-13T17:16:48.923 · Çekilme zamanı: 2026-07-13T18:30:04.630397+00:00

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Detaylı analiz gerekiyor.

Public Exploit Sinyali

Bu CVE için açıklama veya referanslarda public exploit / PoC / GitHub / Metasploit sinyali tespit edildi.

Not: Bu bağlantılar yalnızca güvenlik araştırması ve doğrulama amacıyla listelenmiştir.

CVE
CVE-2026-13221
Severity
UNKNOWN
CVSS
N/A
EPSS
Yok

Orijinal NVD Açıklaması

Perl versions through 5.43.9 produce silently incorrect regular expression matches when an alternation of more than 65535 fixed string branches is compiled into a trie in Perl_study_chunk. When such branches are combined into a trie, the delta between the first branch and the shared tail is stored in a 16-bit field. A branch count above 65535 overflows the field, and the trie's match decision table is truncated with no warning or error. A pattern of this shape produces false positive matches (matching strings it should not) and false negative matches (failing to match strings it should). When such a pattern gates an access or filtering decision, the result is wrong.