Fiche vulnérabilité
CVE-2026-33555 : faille moyenne haproxy haproxy (CVSS 5.8)
Description
An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced content-length when the stream is closed via a frame with an empty payload. This can cause desynchronization issues with the backend server and could be used for request smuggling. The earliest affected version is 2.6.
En bref
- Sévérité
- Moyenne (CVSS 5.8)
- Vecteur CVSS
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
- Exploitation active
- Non signalée par la CISA
- Publication
- 13 avr. 2026
- Dernière mise à jour
- 29 juin 2026
Produits concernés
- haproxy haproxy