Allocation of Resources Without Limits or Throttling 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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Start learning- Snyk IDSNYK-MINIMOSLATEST-TRAEFIK2-15427096
- published6 Mar 2026
- disclosed5 Mar 2026
Introduced: 5 Mar 2026
CVE-2026-26998 (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 the ForwardAuth middleware responses. When Traefik is configured to use the ForwardAuth middleware, the response body from the authentication server is read entirely into memory without any size limit. There is no maxResponseBodySize configuration to restrict the amount of data read from the authentication server response. If the authentication server returns an unexpectedly large or unbounded response body, Traefik will allocate unlimited memory, potentially causing an out-of-memory (OOM) condition that crashes the process. This results in a denial of service for all routes served by the affected Traefik instance. This issue has been patched in versions 2.11.38 and 3.6.9.
References
- https://www.cve.org/CVERecord?id=CVE-2026-26998
- https://github.com/advisories/GHSA-fw45-f5q2-2p4x
- https://osv.dev/vulnerability/MINI-4m5f-552h-3v8m
- https://osv.dev/vulnerability/CVE-2026-26998
- 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-fw45-f5q2-2p4x