DEBIAN-CVE-2026-73257

Source
https://security-tracker.debian.org/tracker/CVE-2026-73257
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73257.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-73257
Upstream
Published
2026-08-20T18:16:46Z
Modified
2026-09-10T08:47:29Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

Mongoose is an embedded web server and network library. Priro to version 7.22, a remote unauthenticated attacker can send an HTTP request containing both Content-Length and Transfer-Encoding: chunked. The cl_count and te_count checks in the mg_http_parse() and http_cb() paths in src/http.c accept both headers and prioritize chunked encoding, while a Content-Length-preferring reverse proxy can use a different request boundary. This CL.TE desynchronization can inject requests that access or modify resources in another user context. This issue is fixed in version 7.22.

References

Affected packages

Debian:14 / mongoose

Package

Name
mongoose
Purl
pkg:deb/debian/mongoose?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7.22+ds-1

Affected versions

7.*
7.21+ds-1~bpo13+1
7.21+ds-1
7.21+ds-2
7.22+ds-1~bpo13+1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73257.json"