mongoose: Mongoose is an embedded web server and network library
CVE-2026-73255 is fixed in mongoose on 1 platform by DEBIAN-CVE-2026-73255 (version 7.22+ds-1), released August 21, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Mongoose is an embedded web server and network library. Prior to 7.22, an attacker who can control an SSI-enabled file can place directory traversal sequences in an #include file or #include virtual directive. The mg_ssi() function in src/ssi.c concatenates the directive argument into a filesystem path without calling mg_path_is_sane(), allowing an MG_ENABLE_SSI deployment with ssi_pattern configured to disclose files readable by the Mongoose process. This issue is fixed in version 7.22.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| mongoose · Debian 14 | 7.22+ds-1 | DEBIAN-CVE-2026-73255 | Aug 21, 2026 |
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