CVE-2026-29777

MEDIUM EPSS 19.4%
Published Mar 11, 20263mo ago · Modified Mar 19, 20263mo ago
6.1 CVSS 4.0
Medium
Find Similar
Published Mar 11, 2026 3mo ago
Last Modified Mar 19, 2026 3mo ago

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.

CVSS Details

Base Score
6.1
Exploitability
—
Impact
—
Vector string
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/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
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
19.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-74

Affected Products 1

VendorProductVersionRange
traefiktraefik* <3.6.10

References 2

  • github.com https://github.com/traefik/traefik/releases/tag/v3.6.10
    Release Notes
  • github.com https://github.com/traefik/traefik/security/advisories/GHSA-8q2w-wr49-whqj
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.