CVE-2026-45711: Mailpit: Path traversal & arbitrary file write in mailpit dump --http via attacker-controlled message IDs
axllent · mailpit
Affected: axllent mailpit · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 33% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- axllent · mailpit< 1.30.0
On the Atlas
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-45711 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.