CVE-2026-42784

תיאור (מקור, אנגלית)

A flaw was found in sequoia-openpgp. The library incorrectly infers key flags for older certificates when a key flags subpacket is missing, leading to a discrepancy in how key capabilities are viewed. This key flag confusion allows an attacker to bypass the back-signature check. Consequently, an attacker can illegitimately bind an arbitrary subkey to their own certificate and forge signatures, completely compromising cryptographic integrity.

מדדים

CVSS 3.1

7.4 (HIGH) מקור הציון: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N

CWE

CWE-347

קישורים

• https://access.redhat.com/security/cve/CVE-2026-42784
• https://bugzilla.redhat.com/show_bug.cgi?id=2464122