GHSA-4hjq-9h5c-252j
Traefik: HTTP/2 frames can cause a running server to panic
Summary
More Details:
- https://nvd.nist.gov/vuln/detail/CVE-2026-27141
- https://pkg.go.dev/golang.org/x/net/http2?tab=versions
Patches
- https://github.com/traefik/traefik/releases/tag/v3.6.10
- https://github.com/traefik/traefik/releases/tag/v2.11.40
For more information
If you have any questions or comments about this advisory, please open an issue.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- None
What each source reports
GitHub Advisories Score used
Traefik: HTTP/2 frames can cause a running server to panic
Summary
More Details:
- https://nvd.nist.gov/vuln/detail/CVE-2026-27141
- https://pkg.go.dev/golang.org/x/net/http2?tab=versions
Patches
- https://github.com/traefik/traefik/releases/tag/v3.6.10
- https://github.com/traefik/traefik/releases/tag/v2.11.40
For more information
If you have any questions or comments about this advisory, please open an issue.
- Record
GHSA-4hjq-9h5c-252j- CVSS 4.0
- 7.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSV
Traefik: HTTP/2 frames can cause a running server to panic
Summary
More Details:
- https://nvd.nist.gov/vuln/detail/CVE-2026-27141
- https://pkg.go.dev/golang.org/x/net/http2?tab=versions
Patches
- https://github.com/traefik/traefik/releases/tag/v3.6.10
- https://github.com/traefik/traefik/releases/tag/v2.11.40
For more information
If you have any questions or comments about this advisory, please open an issue.
- Record
GHSA-4hjq-9h5c-252j- CVSS 4.0
- 7.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSVGO-2026-4684No score
Traefik: HTTP/2 frames can cause a running server to panic in github.com/traefik/traefik
Traefik: HTTP/2 frames can cause a running server to panic in github.com/traefik/traefik
- Record
GO-2026-4684- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/traefik/traefik/v2Go | through 2.11.39 | 2.11.40 |
github.com/traefik/traefik/v3Go | through 3.6.9 | 3.6.10 |
github.com/traefik/traefik/v2Go | before 2.11.40 | 2.11.40 |
github.com/traefik/traefik/v3Go | before 3.6.10 | 3.6.10 |
github.com/traefik/traefikGo | All versions | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-4hjq-9h5c-252j is a high vulnerability (CVSS 7.7) in github.com/traefik/traefik, published March 12, 2026. No source lists public exploit code. Fixed in github.com/traefik/traefik/v2 2.11.40.