CVE-2026-48710
CVE-2026-48710 · Starlette has missing Host header validation that poisons request.url.path, bypassing path-based security checks
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
Esta página muestra una selección de datos de las fuentes. Consulte los avisos enlazados para ver la descripción completa y las versiones afectadas.
Starlette is a lightweight ASGI framework/toolkit. Prior to version 1.0.1, the HTTP `Host` request header was not validated before being used to reconstruct `request.url`. Because the routing algorithm relies on the raw HTTP path while `request.url` is rebuilt from the `Host` header, a malformed header could make `request.url.path` differ from the path that was actually requested. Middleware and endpoints that apply security restrictions based on `request.url` (rather than the raw `scope` path) could therefore be bypassed. Users should upgrade to a version greater than or equal to version 1.0.1, which validates the `Host` header against the grammar of RFC 9112 §3.2 / RFC 3986 §3.2.2 when constructing `request.url` and falls back to `scope["server"]` for malformed values.
CVSS 6.5 · Media · EPSS 70,3% · En el catálogo KEV · Código de explotación público · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: system · python
Productos y versiones afectados
starlette
- Versiones
- < 1.0.1: Afectada
Sin corrección publicada
starlette Debian:12
- Versiones
- 0.26.1-1
- Intervalos de versiones afectados
- ECOSYSTEM: < 0.26.1-1+deb12u1
Actualiza a 0.26.1-1+deb12u1
starlette Debian:13
- Versiones
- 0.46.1-3
- 0.46.1-3+deb13u1
- Intervalos de versiones afectados
- ECOSYSTEM: < 0.46.1-3+deb13u2
Actualiza a 0.46.1-3+deb13u2
starlette Debian:14
- Versiones
- 0.46.1-3
- 0.50.0-1
- 1.0.0-1
- Intervalos de versiones afectados
- ECOSYSTEM: < 1.1.0-1
Actualiza a 1.1.0-1
starlette PyPI
- Versiones
- 0.1.0
- 0.1.1
- 0.1.10
- 0.1.11
- 0.1.12
- 0.1.13
- 0.1.14
- 0.1.15
- 0.1.16
- 0.1.17
- 0.1.2
- 0.1.3
- 0.1.4
- 0.1.5
- 0.1.6
- 0.1.7
- 0.1.8
- 0.1.9
- 0.10.0
- 0.10.1
- 0.10.2
- 0.10.3
- 0.10.4
- 0.10.5
- 0.10.6
- 0.10.7
- 0.11.0
- 0.11.1
- 0.11.2
- 0.11.3
- 0.11.4
- 0.12.0
- 0.12.0b1
- 0.12.0b2
- 0.12.0b3
- 0.12.1
- 0.12.10
- 0.12.11
- 0.12.12
- 0.12.13
- 0.12.2
- 0.12.3
- 0.12.4
- 0.12.5
- 0.12.6
- 0.12.7
- 0.12.8
- 0.12.9
- 0.13.0
- 0.13.1
- 0.13.2
- 0.13.3
- 0.13.4
- 0.13.5
- 0.13.6
- 0.13.7
- 0.13.8
- 0.14.0
- 0.14.1
- 0.14.2
- 0.15.0
- 0.16.0
- 0.17.0
- 0.17.1
- 0.18.0
- 0.19.0
- 0.19.1
- 0.2.0
- 0.2.1
- 0.2.2
- 0.2.3
- 0.20.0
- 0.20.1
- 0.20.2
- 0.20.3
- 0.20.4
- 0.21.0
- 0.22.0
- 0.23.0
- 0.23.1
- 0.24.0
- 0.25.0
- 0.26.0
- 0.26.0.post1
- 0.26.1
- 0.27.0
- 0.28.0
- 0.29.0
- 0.3.0
- 0.3.1
- 0.3.2
- 0.3.3
- 0.3.4
- 0.3.5
- 0.3.6
- 0.3.7
- 0.30.0
- 0.31.0
- 0.31.1
- 0.32.0
- 0.32.0.post1
- 0.33.0
- 0.34.0
- 0.35.0
- 0.35.1
- 0.36.0
- 0.36.1
- 0.36.2
- 0.36.3
- 0.37.0
- 0.37.1
- 0.37.2
- 0.38.0
- 0.38.1
- 0.38.2
- 0.38.3
- 0.38.4
- 0.38.5
- 0.38.6
- 0.39.0
- 0.39.1
- 0.39.2
- 0.4.0
- 0.4.1
- 0.4.2
- 0.40.0
- 0.41.0
- 0.41.1
- 0.41.2
- 0.41.3
- 0.42.0
- 0.43.0
- 0.44.0
- 0.45.0
- 0.45.1
- 0.45.2
- 0.45.3
- 0.46.0
- 0.46.1
- 0.46.2
- 0.47.0
- 0.47.1
- 0.47.2
- 0.47.3
- 0.48.0
- 0.49.0
- 0.49.1
- 0.49.2
- 0.49.3
- 0.5.0
- 0.5.1
- 0.5.2
- 0.5.3
- 0.5.4
- 0.5.5
- 0.50.0
- 0.51.0
- 0.52.0
- 0.52.1
- 0.6.0
- 0.6.1
- 0.6.2
- 0.6.3
- 0.7.0
- 0.7.1
- 0.7.2
- 0.7.3
- 0.7.4
- 0.8.0
- 0.8.1
- 0.8.2
- 0.8.3
- 0.8.4
- 0.8.5
- 0.8.6
- 0.8.7
- 0.8.8
- 0.9.0
- 0.9.1
- 0.9.10
- 0.9.11
- 0.9.2
- 0.9.3
- 0.9.4
- 0.9.5
- 0.9.6
- 0.9.7
- 0.9.8
- 0.9.9
- 1.0.0
- 1.0.0rc1
- Intervalos de versiones afectados
- ECOSYSTEM: < 1.0.1
Actualiza a 1.0.1
starlette Ubuntu:22.04:LTS
- Versiones
- 0.14.1-1
- 0.16.0-1
- 0.18.0-1
- Intervalos de versiones afectados
- ECOSYSTEM: (−∞, +∞)
Sin corrección publicada
starlette Ubuntu:24.04:LTS
- Versiones
- 0.30.0-1
- 0.31.1-1
- Intervalos de versiones afectados
- ECOSYSTEM: (−∞, +∞)
Sin corrección publicada
starlette Ubuntu:25.10
- Versiones
- 0.46.1-2
- 0.46.1-3
- Intervalos de versiones afectados
- ECOSYSTEM: (−∞, +∞)
Sin corrección publicada
starlette Ubuntu:26.10
- Versiones
- 0.50.0-1
- 1.1.0-1
- 1.3.1-1
- 1.7.0-2
- Intervalos de versiones afectados
- ECOSYSTEM: (−∞, +∞)
Sin corrección publicada
starlette Ubuntu:26.04:LTS
- Versiones
- 0.46.1-3
- 0.50.0-1
- Intervalos de versiones afectados
- ECOSYSTEM: (−∞, +∞)
Sin corrección publicada
Fuentes originales
- https://github.com/Kludex/starlette/security/advisories/GHSA-86qp-5c8j-p5mr
- https://github.com/Kludex/starlette/commit/764dab0dcfb9033d75442d7a359645c9f94648c6
- https://badhost.org
- https://github.com/pypa/advisory-database/tree/main/vulns/starlette/PYSEC-2026-161.yaml
- https://ostif.org/disclosing-the-badhost-vulnerability-in-starlette
- https://www.secwest.net/starlette
- https://www.x41-dsec.de/lab/advisories/x41-2026-002-starlette
- https://www.wiz.io/blog/ai-infrastructure-honeypot
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48710
- https://access.redhat.com/security/cve/CVE-2026-48710
- https://bugzilla.redhat.com/show_bug.cgi?id=2481742
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48710.json
- https://access.redhat.com/errata/RHSA-2026:30089
- https://access.redhat.com/errata/RHSA-2026:30088
- https://access.redhat.com/errata/RHSA-2026:24866
- https://access.redhat.com/errata/RHSA-2026:23346
- https://access.redhat.com/errata/RHSA-2026:43038
- https://access.redhat.com/errata/RHSA-2026:37275
- https://access.redhat.com/errata/RHSA-2026:60520
- https://access.redhat.com/errata/RHSA-2026:34456
- https://access.redhat.com/errata/RHSA-2026:44696
- https://access.redhat.com/errata/RHSA-2026:22993
- https://access.redhat.com/errata/RHSA-2026:26226
- https://nvd.nist.gov/vuln/detail/CVE-2026-48710