CVE catalog
CVE-2026-73259
DEBIAN-CVE-2026-73259
- Severity
- Unknown
- Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.41% · Oct 25, 2026
Mongoose is an embedded web server and network library. Prior to 7.22, a remote attacker can send a crafted percent-encoded request path to a deployment using MG_ENABLE_DIRLIST and persuade a user to visit it. The mg_http_serve_dir() and listdir() path in src/http.c places the decoded request URI into the title and h1 elements without HTML entity encoding. The resulting reflected cross-site scripting executes in the Mongoose origin and can expose session data or perform actions as the victim. This issue is fixed in version 7.22.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | mongoose | 14 | 7.21+ds-1 | vulnerable |
| Debian | mongoose | 14 | 7.21+ds-1~bpo13+1 | vulnerable |
| Debian | mongoose | 14 | 7.21+ds-2 | vulnerable |
| Debian | mongoose | 14 | 7.22+ds-1~bpo13+1 | vulnerable |
| Debian | mongoose | 14 | 7.22+ds-1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | mongoose | deb | 14 | 7.22+ds-1 | Not reported | DEBIAN-CVE-2026-73259 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed: