CVE-2025-14523
Libsoup: libsoup: duplicate host header handling causes host-parsing discrepancy (first- vs last-value wins)
HIGH 8.2
En bref
- Source
- NVD
- EPSS
- EPSS 0.54 % · centile 46 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
- Statut NVD
- Deferred
Description
A flaw in libsoup’s HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one backend but the backend interprets it as destined for another host. This discrepancy enables request-smuggling style attacks, cache poisoning, or bypassing host-based access controls when an attacker supplies duplicate Host headers.
Faiblesses (CWE)
- CWE-444 — Dissimulation de requête ou de réponse HTTP
Références
- https://access.redhat.com/errata/RHSA-2026:0421
- https://access.redhat.com/errata/RHSA-2026:0422
- https://access.redhat.com/errata/RHSA-2026:0423
- https://access.redhat.com/errata/RHSA-2026:0836
- https://access.redhat.com/errata/RHSA-2026:0867
- https://access.redhat.com/errata/RHSA-2026:0868
- https://access.redhat.com/errata/RHSA-2026:0905
- https://access.redhat.com/errata/RHSA-2026:0906
- https://access.redhat.com/errata/RHSA-2026:0907
- https://access.redhat.com/errata/RHSA-2026:0908
- https://access.redhat.com/errata/RHSA-2026:0909
- https://access.redhat.com/errata/RHSA-2026:0911
- https://access.redhat.com/errata/RHSA-2026:0925
- https://access.redhat.com/errata/RHSA-2026:1509
- https://access.redhat.com/errata/RHSA-2026:1569
- https://access.redhat.com/errata/RHSA-2026:1570
- https://access.redhat.com/errata/RHSA-2026:1571
- https://access.redhat.com/errata/RHSA-2026:1572
- https://access.redhat.com/security/cve/CVE-2025-14523
- https://bugzilla.redhat.com/show_bug.cgi?id=2421349
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/472
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N | redhat |
| CVSS 3.1 | HIGH 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N | NVD · secalert@redhat.com (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2025-202685
- GCVE · GCVE-0-2025-14523
Produits affectés
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |