| Name | CVE-2026-48710 |
| Description | starlette Ignore malformed Host header when constructing request.url |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1137375 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| starlette (PTS) | bullseye | 0.14.1-1 | vulnerable |
| bookworm | 0.26.1-1 | vulnerable |
| trixie | 0.46.1-3+deb13u1 | vulnerable |
| forky, sid | 1.0.0-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| starlette | source | (unstable) | (unfixed) | | | 1137375 |
Notes
https://x41-dsec.de/lab/advisories/x41-2026-002-starlette/
https://github.com/Kludex/starlette/security/advisories/GHSA-86qp-5c8j-p5mr
https://github.com/Kludex/starlette/commit/764dab0dcfb9033d75442d7a359645c9f94648c6 (1.0.1)
https://github.com/Kludex/starlette/pull/3279