Resource exhaustion in Axllent Mailpit

CVE-2026-45712

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 whi…

Vulnerability class: Race Condition

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-45712?
CVE-2026-45712 is a medium-severity vulnerability in Axllent Mailpit, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 5.9/10. Published 2026-07-20.
How severe is CVE-2026-45712?
Medium severity. CVSS v3 base score is 5.9 out of 10.