Fiche vulnérabilité
CVE-2026-6276 : faille élevée haxx curl (CVSS 7.5)
Description
Using libcurl, when a custom `Host:` header is first set for an HTTP request and a second request is subsequently done using the same *easy handle* but without the custom `Host:` header set, the second request would use stale information and pass on cookies meant for the first host in the second request. Leak them.
En bref
- Sévérité
- Élevée (CVSS 7.5)
- Vecteur CVSS
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 13 mai 2026
- Dernière mise à jour
- 15 sept. 2026
Produits concernés
- haxx curl