CVE-2024-24791
HIGH7.5EPSS 1.0%Denial of service due to improper 100-continue handling in net/http
Published: 7/2/2024Modified: 4/28/2026
Description
The net/http HTTP/1.1 client mishandled the case where a server responds to a request with an "Expect: 100-continue" header with a non-informational (200 or higher) status. This mishandling could leave a client connection in an invalid state, where the next request sent on the connection will fail. An attacker sending a request to a net/http/httputil.ReverseProxy proxy can exploit this mishandling to cause a denial of service by sending "Expect: 100-continue" requests which elicit a non-informational response from the backend. Each such request leaves the proxy with an invalid connection, and causes one subsequent request using that connection to fail.
Affected packages (4)
- Bitnami/golangfrom 0, < 1.21.12, >= 1.22.0-0, < 1.22.5
- Debian/golang-1.15from 0
- Debian/golang-1.19from 0
- Go/stdlibfrom 0, < 1.21.12, >= 1.22.0-0, < 1.22.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (7)
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2024-24791
- PATCHhttps://go.dev/cl/591255
- REPORThttps://go.dev/issue/67555
- WEBhttps://groups.google.com/g/golang-dev/c/t0rK-qHBqzY/m/6MMoAZkMAgAJ
- WEBhttps://nvd.nist.gov/vuln/detail/CVE-2024-24791
- WEBhttps://pkg.go.dev/vuln/GO-2024-2963
- WEBhttps://security.netapp.com/advisory/ntap-20241004-0004/