Vulnerability · Published Jul 15, 2026 · Assigned by GitHub_M

CVE-2026-45737Argo CD: Kubernetes Secret Extraction via ArgoCD ServerSideDiff via sensitive annotations

Medium 6.3

In plain English

A medium-severity information exposure in argo-cd from argoproj. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.5%top 55.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 3.2.0 until 3.2.12, 3.3.10, and 3.4.2, Argo CD ServerSideDiff can expose Kubernetes Secret values embedded in the kubectl.kubernetes.io/last-applied-configuration annotation because HideSecretData(target, live, ...) does not fully sanitize ResourceDiff.TargetState and LiveState predicted live Secret objects, allowing sensitive data, stringData, and annotations to appear in UI or CLI diffs. This issue is fixed in versions 3.2.12, 3.3.10, and 3.4.2.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/argoproj/argo-cd	no fix listed	GO-2026-5618
Go	github.com/argoproj/argo-cd/v2	no fix listed	GO-2026-5618
Go	github.com/argoproj/argo-cd/v3	3.2.12	GHSA-rg3g-4rw9-gqrp
Go	github.com/argoproj/argo-cd/v3	3.3.10	GHSA-rg3g-4rw9-gqrp
Go	github.com/argoproj/argo-cd/v3	3.4.2	GHSA-rg3g-4rw9-gqrp
Go	github.com/argoproj/argo-cd/v3	3.2.12, 3.3.10, 3.4.2	GO-2026-5618

Affected products (as reported)

Vendor	Product	Versions
argoproj	argo-cd	>= 3.2.0, < 3.2.12>= 3.3.9, < 3.3.10>= 3.4.1, < 3.4.2

Weakness: CWE-200, CWE-212 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

References

https://github.com/argoproj/argo-cd/security/advisories/GHSA-rg3g-4rw9-gqrp x_refsource_CONFIRM
https://github.com/argoproj/argo-cd/commit/7879e6322465080a82d152bf00f2b92e0f36c658 x_refsource_MISC
https://github.com/argoproj/argo-cd/commit/87e9148320749693624d08e3d6fa2cc217c672a0 x_refsource_MISC
https://github.com/argoproj/argo-cd/commit/ac11bec9986807adc8886ef1181eced7347ef5c6 x_refsource_MISC
https://github.com/argoproj/argo-cd/commit/bcb4298afc9fcff5f5d69f4e1db2d0a75983f42c x_refsource_MISC
https://github.com/argoproj/argo-cd/releases/tag/v3.2.12 x_refsource_MISC
https://github.com/argoproj/argo-cd/releases/tag/v3.3.10 x_refsource_MISC
https://github.com/argoproj/argo-cd/releases/tag/v3.4.2 x_refsource_MISC