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2.9 Low

CVE-2026-57062 CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS format for AES-GCM…

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.

Affected products and versions

Product Affected versions Fixed in
GnuPG 2.5 earliest → 2.5.20 No fix stated

References

Timeline

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