Resource Exhaustion Affecting traefik-2 package, versions <2.11.38-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-TRAEFIK2-15426876
- published6 Mar 2026
- disclosed5 Mar 2026
Introduced: 5 Mar 2026
CVE-2026-26999 (opens in a new tab)How to fix?
Upgrade Minimos:latest traefik-2 to version 2.11.38-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream traefik-2 package and not the traefik-2 package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.38 and 3.6.9, there is a potential vulnerability in Traefik managing TLS handshake on TCP routers. When Traefik processes a TLS connection on a TCP router, the read deadline used to bound protocol sniffing is cleared before the TLS handshake is completed. When a TLS handshake read error occurs, the code attempts a second handshake with different connection parameters, silently ignoring the initial error. A remote unauthenticated client can exploit this by sending an incomplete TLS record and stopping further data transmission, causing the TLS handshake to stall indefinitely and holding connections open. By opening many such stalled connections in parallel, an attacker can exhaust file descriptors and goroutines, degrading availability of all services on the affected entrypoint. This issue has been patched in versions 2.11.38 and 3.6.9.
References
- https://www.cve.org/CVERecord?id=CVE-2026-26999
- https://github.com/advisories/GHSA-xw98-5q62-jx94
- https://osv.dev/vulnerability/MINI-rp72-qv6p-cfx5
- https://osv.dev/vulnerability/CVE-2026-26999
- https://github.com/traefik/traefik/releases/tag/v2.11.38
- https://github.com/traefik/traefik/releases/tag/v3.6.9
- https://github.com/traefik/traefik/security/advisories/GHSA-xw98-5q62-jx94