CVE-2023-50726 is a medium-severity (CVSS 6.4) Improper Privilege Management 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.
Users with `create` but not `override` privileges can perform local sync in argo-cd
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-2023-50726.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
github.com/argoproj/argo-cd🐹github.com/argoproj/argo-cd/v2🐹github.com/argoproj/argo-cd/v2🐹github.com/argoproj/argo-cd/v2Real-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
"Local sync" is an Argo CD feature that allows developers to temporarily override an Application's manifests with locally-defined manifests. Use of the feature should generally be limited to highly-trusted users, since it allows the user to bypass any merge protections in git.
An improper validation bug allows users who have create privileges but not override privileges to sync local manifests on app creation. All other restrictions, including AppProject restrictions are still enforced. The only restriction which is not enforced is that the manifests come from some approved git/Helm/OCI source.
The bug was introduced in 1.2.0-rc1 when the local manifest sync feature was added.
Patches
The bug has been patched in the following versions:
- 2.10.3
- 2.9.8
- 2.8.12
Workarounds
To immediately mitigate the risk of branch protection bypass, remove applications, create RBAC access. The only way to eliminate the issue without removing RBAC access is to upgrade to a patched version.
Branch protection rules and review requirements are a great way to enforce security constraints in a GitOps environment, but they should be just one layer in a multi-layered approach. Make sure your AppProject and RBAC restrictions are as thorough as possible to prevent a review bypass vulnerability from permitting excessive damage.
References
For more information
- Open an issue in the Argo CD issue tracker or discussions
- Join us on Slack in channel #argo-cd
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/argoproj/argo-cd | ≥ 1.2.0-rc1 | No fix |
| 🐹Go | github.com/argoproj/argo-cd/v2 | ≥ 2.9.0&&< 2.9.8 | 2.9.8go get github.com/argoproj/argo-cd/v2@v2.9.8 |
| 🐹Go | github.com/argoproj/argo-cd/v2 | ≥ 2.10.0&&< 2.10.3 | 2.10.3go get github.com/argoproj/argo-cd/v2@v2.10.3 |
| 🐹Go | github.com/argoproj/argo-cd/v2 | ≥ 2.0.0-rc3&&< 2.8.12 | 2.8.12go get github.com/argoproj/argo-cd/v2@v2.8.12 |
Affected Products
argo cdargoprojDetection & 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
A fix is available for CVE-2023-50726; check the affected-versions list above or the advisory for the patched release of github.com/argoproj/argo-cd, then make sure no transitive dependency still pins the vulnerable range.
Workarounds
Close the privilege gap rather than the entry point: audit which accounts, roles and service identities can reach the affected operation, drop the component to the least privilege it actually needs, and review file and directory permissions created by earlier installs — a default left in place is what makes this reachable.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
To mitigate the risk of branch protection bypass, remove applications and create RBAC access.Source: Red Hat security advisory for CVE-2023-50726 (CC BY 4.0)
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat OpenShift GitOps 1.10 | openshift-gitops-1/argocd-rhel8:v1.10.4-1 | RHSA-2024:1700 |
| Red Hat OpenShift GitOps 1.11 | openshift-gitops-1/argocd-rhel8:v1.11.3-2 | RHSA-2024:1697 |
| Red Hat OpenShift GitOps 1.12 | openshift-gitops-argocd-cli-0:1.12.1-5.el8 | RHSA-2024:1752 |
| Red Hat OpenShift GitOps 1.12 | openshift-gitops-1/argocd-rhel8:v1.12.1-1 | RHSA-2024:1753 |
Frequently Asked Questions
Is CVE-2023-50726 in your dependencies?
Find it across Go, including transitive dependencies.