CVE-2026-57062

State: Published
Severity: 2.9 Low
Published: Jun 23, 2026
Updated: Jun 23, 2026
Reserved: Jun 23, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	2.9 Low	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N	mitre

Weaknesses

CWE-1284 Improper Validation of Specified Quantity in Input

Affected Products

Product	Versions
GnuPGGnuPG	2.5.20 and earlierAffected

References

https://blog.calif.io/p/how-to-format-a-ciphertext
https://www.gnupg.org/download/

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