GHSA-7f4j-64p6-5h5v GO-2024-2726

Traefik affected by HTTP/2 CONTINUATION flood in net/http

Medium Go

Severity: Medium; The publisher's own rating, not a CVSS score
Exploit chance (EPSS): —; No score published
Known exploited: No; Not in CISA's catalog
Weakness: —; Not classified
Fix: Available; 2 packages have a fixed version

Description

There is a potential vulnerability in Traefik managing HTTP/2 connections.

More details in the CVE-2023-45288.

Patches

Workarounds

No workaround

For more information

If you have any questions or comments about this advisory, please open an issue.

Affected versions

Go

Package	Vulnerable	Fixed in
github.com/traefik/traefik	`all versions`	No fix yet
github.com/traefik/traefik/v2	`< 2.11.2`	`2.11.2`
github.com/traefik/traefik/v3	`>= 3.0.0-rc1, < 3.0.0-rc5`	`3.0.0-rc5`

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

github.com/traefik/traefik/v2 Go → `2.11.2`

go

go get github.com/traefik/traefik/v2@v2.11.2 && go mod tidy

github.com/traefik/traefik/v3 Go → `3.0.0-rc5`

go

go get github.com/traefik/traefik/v3@v3.0.0-rc5 && go mod tidy

References

Packages

github.com/traefik/traefik

Timeline

Apr 15, 2024 Published
Aug 7, 2026 Last updated by the source

Advisory	Severity	Why it's related
GO-2026-6558 Traefik: BasicAuth singleflight coalescing reintroduces an unauthenticated username-enumeration timing oracle	Medium	Also affects github.com/traefik/traefik
GHSA-f52w-8j3h-j724 Traefik: Rootless HTTP/1 request-target routes as "/" but is forwarded verbatim, bypassing path-scoped routing, middleware guards and access logging	High	Also affects github.com/traefik/traefik
GHSA-w4v4-9rw7-5326 Traefik: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') and Incorrect Authorization	Critical	Also affects github.com/traefik/traefik
GHSA-qqjf-53cj-pwvv Traefik HTTP/3 Backend NTLM Connection Reuse	Critical	Also affects github.com/traefik/traefik
GO-2026-6467 Traefik entrypoint header-name sanitization bypassed via request trailers	High	Also affects github.com/traefik/traefik
GHSA-rf44-j88r-hh8c Traefik: ForwardAuth identity spoofing via dot-form header alias	High	Also affects github.com/traefik/traefik
GHSA-7ghq-v6jf-g56c Traefik: respondingTimeouts.readTimeout is not applied to HTTP/3, leaving slow-body uploads unbounded	Medium	Also affects github.com/traefik/traefik
GHSA-62fc-8686-hfmq Traefik: `allowCrossNamespace=false` bypass via `@kubernetescrd` TraefikService backendRef	Medium	Also affects github.com/traefik/traefik

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