Is CVE-2026-29777 actively exploited?

No active exploitation of CVE-2026-29777 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-29777 be exploited remotely?

Yes. CVE-2026-29777 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-29777?

CVE-2026-29777 has a CVSS score of 6.1 (MEDIUM).

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MEDIUM

CVE-2026-29777

CWE-74Published: March 11, 2026· Updated: Mar 12, 2026

6.1

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.4th

Official 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.

NVD Source

Technical Analysis

CVE-2026-29777 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.High

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

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