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CVE-2026-8463

בינונית 5.3

תיאור (מקור, אנגלית)

Crypt::Argon2 versions from 0.017 before 0.031 for Perl perform a heap out-of-bounds read in argon2_verify on empty encoded input. The auto-detect form of argon2_verify passes encoded_len - 1 as the length argument to memchr without checking that encoded_len is non-zero. When the encoded string is empty, the size_t subtraction underflows to SIZE_MAX and memchr scans adjacent heap memory looking for a '$' separator byte. A caller that invokes argon2_verify against a stored hash that may legitimately be empty (for example a placeholder row or a NULL column materialised as an empty string) reads out-of-bounds heap memory, which can crash the process or leak the position of an adjacent '$' byte into subsequent parsing.

מדדים

CVSS 3.1
5.3 (MEDIUM) מקור הציון: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS — סבירות ניצול
0% (אחוזון 000) נכון ל-3/8/2026
CWE
CWE-126, CWE-191

מוצרים מושפעים

leont: crypt\

קישורים