CVE-2026-77459
- Source
- https://cve.org/CVERecord?id=CVE-2026-77459
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77459.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-77459
- Aliases
-
- GHSA-fmxq-cgp8-87wp
- Published
- 2026-10-13T16:26:47Z
- Modified
- 2026-10-14T10:47:01Z
- Severity
-
- 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- Argo CD: AppProject destination-namespace and resource restrictions bypassed by PreDelete/PostDelete resource hooks
- Details
-
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 2.10.0 until 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2, Argo CD creates PostDelete resource hooks without applying the AppProject destination and resource authorization checks used during ordinary synchronization. The omitted checks include cluster-scoped and namespaced resource allow/deny lists. A user who can write to an Application's Git repository can commit a delete hook targeting a forbidden namespace, server, group, kind, or resource name, and deletion of the Application causes the application-controller to create that resource with its destination-cluster credentials. The reachable impact is bounded by the controller's cluster access but can include cluster-scoped resources, disallowed namespaces, persistent hook objects, and secondary objects created by a hook Job. PreSync, Sync, PostSync, and SyncFail hooks continue to use the normal project checks. This issue is fixed in versions 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-863" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77459.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77459.json
- https://github.com/argoproj/argo-cd/commit/1149cdc6e932208c4402183cc3d7b7485239940c
- https://github.com/argoproj/argo-cd/commit/4bc8085b0a6d2296b849539d3d09fc7be7a4a511
- https://github.com/argoproj/argo-cd/commit/7f0a05834b05103d69d7c150e1ee36541b314696
- https://github.com/argoproj/argo-cd/commit/d5dd7019ee65be8895133fe4df554e28074242c4
- https://github.com/argoproj/argo-cd/releases/tag/v3.3.15
- https://github.com/argoproj/argo-cd/releases/tag/v3.4.10
- https://github.com/argoproj/argo-cd/releases/tag/v3.5.4
- https://github.com/argoproj/argo-cd/releases/tag/v3.6.0-rc2
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-fmxq-cgp8-87wp
- https://nvd.nist.gov/vuln/detail/CVE-2026-77459
Affected packages
Git / github.com/argoproj/argo-cd
Affected ranges
- Type
- GIT
- Repo
- https://github.com/argoproj/argo-cd
- Events
-
IntroducedLast AffectedIntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "2.10.0" }, { "last_affected": "2.14.21" }, { "introduced": "3.0.0" }, { "fixed": "3.3.15" }, { "introduced": "3.4.0" }, { "fixed": "3.4.10" }, { "introduced": "3.5.0" }, { "fixed": "3.5.4" }, { "introduced": "3.6.0-rc1" }, { "fixed": "3.6.0-rc2" } ], "source": "AFFECTED_FIELD" }