Vulnerability · Published Jun 23, 2026 · Assigned by VulnCheck

CVE-2023-54365Traefik - Denial of Service via HTTP/2 Request Handling

High 7.5

In plain English

A high-severity uncontrolled resource consumption in Traefik from Traefik. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.8%top 44.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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' technique). A remote attacker can rapidly create and cancel HTTP/2 streams to exhaust server resources and cause service unavailability.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/traefik/traefik	2.10.5	GHSA-7v4p-328v-8v5g
Go	github.com/traefik/traefik	3.0.0-beta4	GHSA-7v4p-328v-8v5g

Affected products (as reported)

Vendor	Product	Versions
Traefik	Traefik	0 – before 2.10.5
Traefik	Traefik	3.0.0-beta1 – before 3.0.0-beta4

Weakness: CWE-400, CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

GitHub Security Advisory (GHSA-7v4p-328v-8v5g) vendor-advisory
VulnCheck Advisory: Traefik - Denial of Service via HTTP/2 Request Handling third-party-advisory
https://access.redhat.com/security/cve/CVE-2023-54365 vdb-entry, x_refsource_REDHAT
RHBZ#2491710 issue-tracking, x_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-54365.json x_sadp-csaf-vex