CVE-2026-57062
Published: June 25, 2026Last modified: July 6, 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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 2.9 |
| Attack Vector | LOCAL |
| Attack complexity | HIGH |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | LOW |
| Availability impact | NONE |
| Vector | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | gnupg | Fixed (2.2.40-r2) |
| 25 LTS | gnupg | Fixed (2.4.9-r1) | |
| Stream | gnupg | Fixed (2.4.9-r2) |