CVSS 3.1
3.7 lowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:LCVE-2024-40632
Low (3.7). EPSS 0.4% chance of exploitation in the next 30 days. Fixed in github.com/linkerd/linkerd2 0.5.1-0.20240614165515-35fb2d6d11ef.
Linkerd is an open source, ultralight, security-first service mesh for Kubernetes. In affected versions when the application being run by linkerd is susceptible to SSRF, an attacker could potentially trigger a denial-of-service (DoS) attack by making requests to localhost:4191/shutdown. Linkerd could introduce an optional environment variable to control a token that must be passed as a header. Linkerd should reject shutdown requests that do not include this header. This issue has been addressed in release version edge-24.6.2 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)
- CWE
- CWE-918
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GO-2024-2984 | Go | github.com/linkerd/linkerd2 | <0.5.1-0.20240614165515-35fb2d6d11ef | 0.5.1-0.20240614165515-35fb2d6d11ef |
References
- https://github.com/linkerd/linkerd2-proxy/blob/46957de49f25fd4661af7b7c52659148f4d6dd27/linkerd/app/admin/src/server.rs
- https://github.com/linkerd/linkerd2/commit/35fb2d6d11ef6520ae516dd717790529f85224fa
- https://github.com/linkerd/linkerd2/security/advisories/GHSA-6v94-gj6x-jqj7
- https://github.com/linkerd/linkerd2-proxy/blob/46957de49f25fd4661af7b7c52659148f4d6dd27/linkerd/app/admin/src/server.rs
- https://github.com/linkerd/linkerd2/commit/35fb2d6d11ef6520ae516dd717790529f85224fa