CVE-2023-54365

Traefik - Denial of Service via HTTP/2 Request Handling

State: Published
Severity: 8.7 High
Published: Jun 23, 2026
Updated: Jul 15, 2026
Reserved: Jun 22, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	VulnCheck
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	VulnCheck
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	redhat-SADP

Weaknesses

CWE-400 Uncontrolled Resource Consumption
CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

Product	Versions
TraefikTraefik	before 2.10.5Affected 2.10.5Not affected
TraefikTraefik	3.0.0-beta1 to before 3.0.0-beta4Affected 3.0.0-beta4Not affected

References

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

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.