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JLSEC-2026-1084 Low 2.9

CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS...

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JLSEC Published
Modified
Severity
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Packages
GnuPG_jll < 2.5.21+0
Upstream
CVE-2026-57062 GHSA-m6x2-4hhh-669j EUVD-2026-38550

CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS format for AES-GCM because aes-ICVlen is supposed to be 12 bytes but 4 bytes is accepted. NOTE: this is related to CVE-2026-34182.

References