CVE-2026-45712

Description

Mailpit is an email testing tool and API for developers. Prior to version 1.30.0, the screenshot/print proxy (/proxy?data=…) maintains a package-level assets map[string]MessageAssets cache, but reads the map without holding assetsMutex while a long-running cleanup goroutine and (re-entrant) CSS-rewriting code path concurrently write to it under the lock. When the unsynchronized read coincides with a synchronized write, Go's runtime raises fatal error: concurrent map read and map write — a runtime.throw that is not recoverable by http.Server's handler-panic recover. The whole Mailpit process exits, taking the SMTP, POP3 and HTTP listeners down with it. Version 1.30.0 contains a patch.

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Produits concernés

• axllent mailpit

Scores CVSS

Faiblesses (CWE)

• CWE-362
• CWE-770

Références

• https://github.com/axllent/mailpit/releases/tag/v1.30.0 Release Notes
• https://github.com/axllent/mailpit/security/advisories/GHSA-w4vj-r5pg-3722 ExploitVendor Advisory
• https://github.com/axllent/mailpit/security/advisories/GHSA-w4vj-r5pg-3722 ExploitVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories