{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-12537: Unauthenticated Remote Code Execution in Gemini CLI CI/CD Workflows","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-12537","status":"final","version":"1","initial_release_date":"2026-06-24T13:37:21.872Z","current_release_date":"2026-06-24T13:53:24.904Z","revision_history":[{"date":"2026-06-24T13:37:21.872Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"Improper Neutralization used in an OS Command in the container launcher in Google Gemini CLI (versions prior to 0.39.1) and run-gemini-cli GitHub Action (versions prior to 0.1.22) on headless CI platforms allows an unprivileged attacker to achieve pre-sandbox host-level code execution a maliciously crafted .gemini/.env file.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-12537 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-12537"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-12537"},{"category":"external","summary":"github.com","url":"https://github.com/google-github-actions/run-gemini-cli/security/advisories/GHSA-wpqr-6v78-jr5g"}]},"product_tree":{"branches":[{"category":"vendor","name":"Google Cloud","branches":[{"category":"product_name","name":"Gemini CLI","branches":[{"category":"product_version_range","name":"<0.39.1","product":{"name":"Google Cloud Gemini CLI <0.39.1","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:google_cloud:gemini_cli:*:*:*:*:*:*:*:*"}}}]}]},{"category":"vendor","name":"Google Cloud","branches":[{"category":"product_name","name":"run-gemini-cli GitHub Action","branches":[{"category":"product_version_range","name":"<0.1.22","product":{"name":"Google Cloud run-gemini-cli GitHub Action <0.1.22","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:google_cloud:run-gemini-cli_github_action:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-12537","title":"Unauthenticated Remote Code Execution in Gemini CLI CI/CD Workflows","notes":[{"category":"description","text":"Improper Neutralization used in an OS Command in the container launcher in Google Gemini CLI (versions prior to 0.39.1) and run-gemini-cli GitHub Action (versions prior to 0.1.22) on headless CI platforms allows an unprivileged attacker to achieve pre-sandbox host-level code execution a maliciously crafted .gemini/.env file.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-2"]},"scores":[{"cvss_v4":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/U:Clear","baseScore":10,"baseSeverity":"CRITICAL"},"products":["CSAFPID-1","CSAFPID-2"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 0.1.22, 0.39.1.","product_ids":["CSAFPID-1","CSAFPID-2"]}]}]}