# CVE-2023-54365

## Summary

- **CVE ID:** CVE-2023-54365
- **Severity:** HIGH
- **CVSS Score:** 8.7 (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)
- **CWE:** CWE-400
- **Published:** Jun 23, 2026
- **Last Modified:** Jul 15, 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.

## Affected Products

- Traefik — Traefik (0)
- Traefik — Traefik (2.10.5)
- Traefik — Traefik (3.0.0-beta1)
- Traefik — Traefik (3.0.0-beta4)

## References

- [CNA](https://github.com/traefik/traefik/security/advisories/GHSA-7v4p-328v-8v5g)
- [CNA](https://www.vulncheck.com/advisories/traefik-denial-of-service-via-http-2-request-handling)
- [redhat-SADP](https://access.redhat.com/security/cve/CVE-2023-54365)
- [redhat-SADP](https://bugzilla.redhat.com/show_bug.cgi?id=2491710)
- [redhat-SADP](https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-54365.json)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.77%
- **EPSS Percentile:** 53.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._