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CVE-2026-43862 Details
Description
In mutt before 2.3.2, the imap_auth_gss security level is mishandled.
A vulnerability exists in Mutt versions prior to 2.3.2, where the IMAP GSS authentication security level is improperly managed. This issue stems from a size check error in the security level data, which could potentially lead to incorrect handling of authentication tokens.
Users can upgrade to Mutt version 2.3.2 or later to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 4, 2026Exploitation: NoneAutomatable: NoTechnical Impact: Partial
CISA-ADP
Assessed May 4, 2026Exploitation: NoneAutomatable: NoTechnical Impact: Partial
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/muttmua/mutt/commit/f547a849cdacb512800a5f477c27de217e1c8151 | [email protected] | Source CodeVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-843 | Access of Resource Using Incompatible Type ('Type Confusion') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| mutt | < 2.3.2 (semver) |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 4, 2026 | New CVE Received | [email protected] |