CVE-2026-29777: Kubernetes gateway rule injection via unescaped backticks in HTTPRoute match values

Kubernetes gateway rule injection via unescaped backticks in HTTPRoute match values

F-TRAEFIK-006

Public snapshot: 26 Sep 2026. Status, releases and attribution belong to each source below; none is inferred from another record.

Recorded evidence

8.7high

CVE-2026-29777CVEtraefik/traefik

Kubernetes gateway rule injection via unescaped backticks in HTTPRoute match values

Fixed in: v3.6.10

patched

details

Finding IDs: F-TRAEFIK-006
CVE: CVE-2026-29777
GHSA: GHSA-8q2w-wr49-whqj
Status: patched
Fixed in: v3.6.10
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
CVE registry state: PUBLISHED
CVE state checked: 23 Sep 2026
Upstream title: Kubernetes gateway rule injection via unescaped backticks in HTTPRoute match values
Upstream CWE: CWE-74
Upstream publication: 11 Mar 2026
Upstream updated: 11 Mar 2026
Metadata fetched: 23 Sep 2026
Upstream @1seal credit: @1seal: reporter (accepted)

F-TRAEFIK-006: Code / markup injection. Backticks in rule data change rule-expression interpretation. Reviewed 24 Sep 2026. Mechanism assessed by 1seal.

Mechanism source for F-TRAEFIK-006

Security area (1seal assessment): Semantics. Backticks in rule data change rule-expression interpretation. Reviewed 24 Sep 2026.

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How this page groups evidence

This identifier groups recorded evidence; it is not an additional CVE, independent-vulnerability count or guarantee of vendor confirmation. Fixed code, released versions, attribution and independent discovery are distinct claims. Absent metadata means not recorded, not disproved. Counting rules.