CVE-2023-54365 Traefik - Denial of Service via HTTP/2 Request Handling
Remote attackers can cause service unavailability in Traefik by exploiting HTTP/2 Rapid Reset attacks to exhaust server resources.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-54365?
CVE-2023-54365 is a high-severity denial of service vulnerability in Golang Go, published on 23 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Which versions are affected by CVE-2023-54365?
5 open source packages ship an affected version, including golang and github.com/traefik/traefik. It affects 3 products.
| Package | Affected | Fixed in |
|---|---|---|
golang Bitnami | All versions | 1.20.10, 1.21.3 |
github.com/traefik/traefik Go | All versions | 2.10.5 |
github.com/traefik/traefik Go | All versions | 2.10.5 |
github.com/traefik/traefik Go | From 3.0.0-beta1 | 3.0.0-beta4 |
github.com/traefik/traefik Go | From 3.0.0-beta1 | 3.0.0-beta4 |
Products include Golang Go, Redhat Openshift Ai, Traefik Traefik.
How do I fix CVE-2023-54365?
Upgrade golang to a fixed version for your release line: 1.20.10 or 1.21.3.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-54365 being exploited?
There is no known exploitation of CVE-2023-54365 in the wild and no public exploit code.
Other vulnerabilities in Golang Go
- CVE-2020-0601 Microsoft Windows CryptoAPI Spoofing
- CVE-2026-27143 Missing bound checks can lead to memory corruption in safe Go in cmd/compile
- CVE-2024-24790 Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses in net/netip
- CVE-2023-39320 Arbitrary code execution via go.mod toolchain directive in cmd/go
- CVE-2023-24540 Improper handling of JavaScript whitespace in html/template
Sources
Also known as BIT-golang-2023-54365, GHSA-7v4p-328v-8v5g, MINI-7w83-3w4f-6pgc.