CVE-2026-45711Mailpit is an email testing tool and API for developers.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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Mailpit is an email testing tool and API for developers. Prior to version 1.30.0, the mailpit dump --http <base-url> <out-dir> sub-command downloads every message from a remote Mailpit instance and writes each one as <id>.eml inside the user-supplied output directory. The message ID field is taken verbatim from the JSON response of the remote server and concatenated into the output path with path.Join, which silently normalizes `..` segments. A malicious HTTP server impersonating Mailpit can therefore make mailpit dump write attacker-controlled bytes to any path the running user can write, fully outside the intended output directory. Version 1.30.0 contains a patch.
- CVSS
- 8.2 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
- Weakness (CWE)
- CWE-22, CWE-829
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
axllent mailpit axllent:mailpit | before 1.30.0 | NVD |
References
- https://github.com/axllent/mailpit/releases/tag/v1.30.0release-notes
- https://github.com/axllent/mailpit/security/advisories/GHSA-qx5x-85p8-vg4jexploit, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.