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Depth

7.5Twilight

GHSA-pvrg-q6jw-42p7High· 7.5▾ Twilight

Duplicate Advisory: Traefik vulnerable to HTTP/2 request causing denial of service

Duplicate Advisory: Traefik vulnerable to HTTP/2 request causing denial of service

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score41/ 100 · Moderate

impact 41.3 · likelihood 0 · exploitation 0

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.

…

Published

Jun 23, 2026

Updated

Sep 22, 2026

CVSS

7.5

Vendor

traefik

Product

github.com/traefik/traefik

CWE

CWE-400, CWE-770

Depth score

41 · Moderate

EPSS

—

Platforms

—

Source

GHSA

Vector

—

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

2 events · 91 days

Jun 23, 2026Published
Disclosed via GHSA
Sep 22, 2026Record revised
Last analysed / modified upstream

traefik CWE-400 CWE-770 #ghsa #go

Affected

github.com/traefik/traefik < 2.10.5

Patched in

github.com/traefik/traefik 2.10.5

Full technical detail▾

Overview

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-7v4p-328v-8v5g. This link is maintained to preserve external references.

Original DescriptionTraefik before 2.10.5 and 3.0.0-beta4 is affected by a denial-of-service vulnerability in HTTP/2 request handling inherited from the Go standard library's HTTP/2 implementation (CVE-2023-44487 / CVE-2023-39325, the 'Rapid Reset' technique). A remote attacker can rapidly create and cancel HTTP/2 streams to exhaust server resources and cause service unavailability.

Affected packages

github.com/traefik/traefik < 2.10.5

Remediation

Upgrade to a patched release:

github.com/traefik/traefik 2.10.5

References

https://github.com/traefik/traefik/security/advisories/GHSA-7v4p-328v-8v5g
https://nvd.nist.gov/vuln/detail/CVE-2023-54365
https://www.vulncheck.com/advisories/traefik-denial-of-service-via-http-2-request-handling
https://access.redhat.com/security/cve/CVE-2023-54365
https://bugzilla.redhat.com/show_bug.cgi?id=2491710
https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-54365.json
https://github.com/advisories/GHSA-pvrg-q6jw-42p7

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

CVE-2023-54365High· 7.5
Traefik before 2.10.5 and 3.0.0-beta4 is affected by a denial-of-service vulnerability in HTTP/2 request handling inherited from the Go standard library's HTTP/2 implementation (CVE-2023-44487 / CVE-2023-39325, the 'Rapid Reset' techniqu…
same vendorCWE-400CWE-770
CVE-2026-25949High· 7.5
Traefik is an HTTP reverse proxy and load balancer
same vendorCWE-400CWE-770
CVE-2026-88012Medium· 5.3
Traefik is an open source HTTP reverse proxy and load balancer
same vendorCWE-770
GO-2024-2941None
ACME DNS: Azure Identity Libraries Elevation of Privilege Vulnerability in github.com/traefik/traefik
same product
GO-2024-2917None
Traefik has unexpected behavior with IPv4-mapped IPv6 addresses in github.com/traefik/traefik
same product
GO-2024-2880None
Traefik vulnerable to GO issue allowing malformed DNS message to cause infinite loop in github.com/traefik/traefik
same product

#ghsa#go