{"id":"CVE-2026-40938","revision":"53ab7b17f3ba4ec59669c0c707e7db3f","records":[{"revision":"53ab7b17f3ba4ec59669c0c707e7db3f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-40938","aliases":[],"title":"Tekton Pipelines: Git Resolver Unsanitized Revision Parameter Enables git Argument Injection Leading to RCE","description":"Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 1.0.0 and prior to versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1, the git resolver's revision parameter is passed directly as a positional argument to git fetch without any validation that it does not begin with a - character. Because git parses flags from mixed positional arguments, an attacker can inject arbitrary git fetch flags such as --upload-pack=<binary>. Combined with the validateRepoURL function explicitly permitting URLs that begin with / (local filesystem paths), a tenant who can submit ResolutionRequest objects can chain these two behaviors to execute an arbitrary binary on the resolver pod. The tekton-pipelines-resolvers ServiceAccount holds cluster-wide get/list/watch on all Secrets, so code execution on the resolver pod enables full cluster-wide secret exfiltration. Versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1 fix the issue.","state":0,"publishedAt":"2026-04-21T20:45:24.658+00:00","modifiedAt":"2026-09-07T12:04:45.955+00:00","affected":[{"ecosystem":"Vendor product","name":"pipeline","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"tektoncd\",\n                    \"product\": \"pipeline\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 1.0.0, < 1.0.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 1.2.0, < 1.3.4\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 1.4.0, < 1.6.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 1.7.0, < 1.9.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 1.10.0, < 1.11.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/tektoncd/pipeline/security/advisories/GHSA-94jr-7pqp-xhcq","https://github.com/tektoncd/pipeline/releases/tag/v1.11.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-40938","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-40938","identifiers":["CVE-2026-40938"]},"retained":false,"historicalAffected":[]}],"coverage":[]}