CVE-2026-44774

CRITICALNVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.9 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 65% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.9
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.9Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.46, 3.6.17, and 3.7.1, Traefik's Kubernetes Gateway API provider allows a tenant with HTTPRoute creation permissions to expose the REST provider handler, bypassing the providers.rest.insecure=false setting. The Gateway provider accepts any TraefikService backend reference whose name ends with @internal, making it possible to route traffic to rest@internal in addition to the intended api@internal. In shared Gateway deployments where the REST provider is enabled, this allows a low-privileged actor to gain live dynamic configuration write access to Traefik, enabling unauthorized reconfiguration of routers and services. This vulnerability is fixed in 2.11.46, 3.6.17, and 3.7.1.

CVSS v3
9.9
EG Score
9.9(medium)
EPSS
36.5%
KEV
Not listed

Published

May 15, 2026

Last Modified

June 30, 2026

Advisory Details (7)

Auto-updated Jul 7, 2026
🔬 Proof of concept available. Patch available. Sources: github_release, github, redhat.
redhat
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44774.json
redhat

2477937 – (CVE-2026-44774) CVE-2026-44774 traefik: Traefik: Privilege escalation via Kubernetes Gateway API provider configuration bypass

https://bugzilla.redhat.com/show_bug.cgi?id=2477937
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-44774
github Patch Available🟡 PoC Available

Gateway API TraefikService backend accepts rest@internal, allowing unauthorized exposure of the REST provider despite providers.rest.insecure=false · Advisory · traefik/traefik · GitHub

https://github.com/traefik/traefik/security/advisories/GHSA-96qj-4jj5-wcjc
github_release Patch Available

v3.7.1

Patch available: traefik/traefik v3.7.1

https://github.com/traefik/traefik/releases/tag/v3.7.1
github_release Patch Available

v3.6.17

Patch available: traefik/traefik v3.6.17

https://github.com/traefik/traefik/releases/tag/v3.6.17
github_release Patch Available

v2.11.46

Patch available: traefik/traefik v2.11.46

https://github.com/traefik/traefik/releases/tag/v2.11.46

Vendor Advisories for CVE-2026-44774(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(3 across 1 ecosystem)
Go(3)
PackageVulnerable rangeFixed inDependents
github.com/traefik/traefik———
github.com/traefik/traefik/v2—2.11.46—
github.com/traefik/traefik/v3—3.6.17—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 91× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 173 total refreshes for this CVE.

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Frequently asked(5)

What is CVE-2026-44774?
CVE-2026-44774 is a critical vulnerability published on May 15, 2026. Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.46, 3.6.17, and 3.7.1, Traefik's Kubernetes Gateway API provider allows a tenant with HTTPRoute creation permissions to expose the REST provider handler, bypassing the providers.rest.insecure=false setting. The Gateway provider…
When was CVE-2026-44774 disclosed?
CVE-2026-44774 was first published in the National Vulnerability Database on May 15, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44774 actively exploited?
CVE-2026-44774 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 36.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-44774?
CVE-2026-44774 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2026-44774?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44774, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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