CVE-2026-15416Argo-cd: argo cd unauthenticated remote code execution in repo-server via generatemanifest grpc endpoint
- 8.9HighCVSS base score
- 0.47%Exploitation in 30 daysEPSS · top 59% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A flaw was identified in Argo CD, the GitOps engine used by Red Hat OpenShift GitOps, that could allow an unauthenticated attacker with network access to the Argo CD repo-server to achieve remote code execution. Under certain conditions, the attacker may then manipulate cached data to deploy malicious Kubernetes resources to managed clusters, potentially resulting in complete cluster compromise.
Timeline
ID reserved
By redhat
- 4 days later
· 4 days later
Published
- 28 days later
· 28 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | High8.9 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L |
| NVDNVD · Awaiting Analysis | 3.1 | High8.9 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L |
- EPSS (exploitation in 30 days)
- 0.47% · top 59% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.9.
Affected products
- affected < 10.0.0
Red Hat · Red Hat OpenShift GitOps 1.19
- unaffected 1785149260 – < *
Red Hat · Red Hat OpenShift GitOps 1.19
- unaffected 1785171339 – < *
Red Hat · Red Hat Openshift Data Foundation 4
All versions: unaffected
Red Hat · Red Hat OpenShift GitOps
All versions: unknown
Red Hat · Red Hat OpenShift GitOps
All versions: unaffected
Red Hat · Red Hat OpenShift GitOps
All versions: affected
Red Hat · Red Hat OpenShift GitOps
All versions: unaffected
Red Hat · Red Hat OpenShift GitOps
All versions: unknown
Red Hat · Red Hat OpenShift GitOps
All versions: affected
Red Hat · Red Hat OpenShift GitOps
All versions: affected
Red Hat · Red Hat OpenShift GitOps
All versions: unaffected
Red Hat · Red Hat OpenShift GitOps
All versions: unaffected
What to do
Workaround: Limit network access to the Argo CD repo-server gRPC endpoint to trusted internal components using Kubernetes NetworkPolicy or equivalent network access controls. Do not expose the repo-server outside the cluster or to untrusted networks. Restrict access to the associated Redis service and update to a fixed version once one becomes available.
References
References7
- RHSA-2026:52857 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-15416 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2496732 (opens in a new tab)issue-trackingx_refsource_REDHAT
- https://github.com/argoproj/argo-helm/commit/0f245ab (opens in a new tab)
- https://github.com/argoproj/argo-helm/security/advisories/GHSA-47m3-95c7-g2g8 (opens in a new tab)
- https://thehackernews.com/2026/07/unpatched-argo-cd-repo-server-flaw.html (opens in a new tab)
- https://www.synacktiv.com/en/publications/caught-in-the-octopus-trap-unauthenticated-rce-in-argo-cd-with-codeql (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-43648 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-15416)Record last updated .