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CVE-2026-29777— Traefik has a kubernetes gateway rule injection via unescaped backticks in HTTPRoute match values

Quick assessment

Affected
traefik traefik
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Traefik是Traefik开源的一款开源的反向代理与负载均衡工具。 Traefik 3.6.10之前版本存在注入漏洞，该漏洞源于具有HTTPRoute资源写入权限的租户可通过未清理的标头或查询参数匹配值注入规则令牌，在共享网关部署中可能绕过侦听器主机名约束并将流量重定向到攻击者控制的后端。

AI Predicted 9.1 Difficulty: Moderate EPSS 0.38% · P30

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-29777

Vulnerability Information
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Vulnerability Title
Traefik has a kubernetes gateway rule injection via unescaped backticks in HTTPRoute match values
Source: CVE Program / CVE List V5
Vulnerability Description
Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.10, A tenant with write access to an HTTPRoute resource can inject backtick-delimited rule tokens into Traefik's router rule language via unsanitized header or query parameter match values. In shared gateway deployments, this can bypass listener hostname constraints and redirect traffic for victim hostnames to attacker-controlled backends. This vulnerability is fixed in 3.6.10.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Traefik 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Traefik是Traefik开源的一款开源的反向代理与负载均衡工具。 Traefik 3.6.10之前版本存在注入漏洞，该漏洞源于具有HTTPRoute资源写入权限的租户可通过未清理的标头或查询参数匹配值注入规则令牌，在共享网关部署中可能绕过侦听器主机名约束并将流量重定向到攻击者控制的后端。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
traefik traefik < 3.6.10 -

II. Public POCs for CVE-2026-29777

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III. Intelligence Information for CVE-2026-29777

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Vendor Advisories for CVE-2026-29777 (1)

Vendor Pages for CVE-2026-29777 (1)

IV. Related Vulnerabilities

Same product: traefik
Same vendor: traefik
Same weakness: CWE-74

V. Comments for CVE-2026-29777

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