CVE-2026-57062
Low
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.
SeverityLow
CVSS2.9
Exploit probability—
ProductGnuPG
PublishedJun 23, 2026
First seenJun 23, 2026
Weakness typeCWE-1284CWE-1284
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| GnuPG GnuPG | v ≤ 2.5.20 | — |
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