# CVE-2026-43862: mutt: In mutt before 2.3.2, the imap_auth_gss security level is mishandled.

CVE-2026-43862 is fixed in mutt on 1 platform, first by DEBIAN-CVE-2026-43862, released May 4, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-43862
- Priority: Routine
- CVSS: 3.7 (low)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 4, 2026

## Description

In mutt before 2.3.2, the imap_auth_gss security level is mishandled.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | mutt Debian 13.5 (trixie) | 2.2.13-1+deb13u1 | [DEBIAN-CVE-2026-43862](https://patchblox.com/security/data/fix/linux/debian-cve-2026-43862.md) | May 4, 2026 |
| Linux | mutt Debian 14 | 2.3.2-1 | [DEBIAN-CVE-2026-43862](https://patchblox.com/security/data/fix/linux/debian-cve-2026-43862.md) | May 4, 2026 |
| Linux | mutt opensuse-leap 16.0 | 2.2.16-160000.2.1 | [OPENSUSE-SU-2026:21016-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21016-1.md) | Jun 22, 2026 |
| Linux | mutt sles 16.0 | 2.2.16-160000.2.1 | [SUSE-SU-2026:22340-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22340-1.md) | Jun 22, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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