Allocation of Resources Without Limits or Throttling Affecting github.com/traefik/traefik/v3/pkg/middlewares/auth package, versions >=3.0.0-beta1 <3.6.9
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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-GOLANG-GITHUBCOMTRAEFIKTRAEFIKV3PKGMIDDLEWARESAUTH-15435550
- published6 Mar 2026
- disclosed5 Mar 2026
- creditsm1ee
Introduced: 5 Mar 2026
CVE-2026-26998 Â (opens in a new tab)How to fix?
Upgrade github.com/traefik/traefik/v3/pkg/middlewares/auth to version 3.6.9 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to unbounded processing of responses in the ForwardAuth middleware due to the lack of restrictions for maxResponseBodySize configuration. An attacker can cause resource exhaustion by sending specially crafted requests that trigger excessive processing of authentication responses.