CVE-2026-91143

7.2 Élevée

Publiée le 15/09/2026 à 00:16 · Modifiée le 23/09/2026 à 19:17 · Analyse NVD reportée · Source : disclosure@vulncheck.com

Description

goproxy through 15.3 fails to apply HTTP proxy basic authentication to CONNECT tunnel requests, allowing unauthenticated clients to bypass credential requirements. Attackers can issue CONNECT requests to establish tunnels through the authenticated proxy without providing credentials, enabling arbitrary TCP traffic relay and access to restricted destinations.

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Produits concernés

snail007 goproxy

Scores CVSS

Version	Score	Source	Vecteur
4.0	6.9 Moyenne	disclosure@vulncheck.com	`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X`
3.1	7.2 Élevée	disclosure@vulncheck.com	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N`

Faiblesses (CWE)

CWE-288

Références

https://github.com/geo-chen/oss/blob/main/goproxy.md
https://github.com/snail007/goproxy
https://github.com/snail007/goproxy/blob/v15.3/services/http.go
https://github.com/snail007/goproxy/blob/v15.3/utils/structs.go
https://www.vulncheck.com/advisories/goproxy-through-15.3-authentication-bypass-via-connect

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories