{"id":"CVE-2023-43741","aliases":["EUVD-2023-3282","GHSA-r5hg-349q-mg2q","GO-2024-2440"],"status":"published","title":"Buildkite Elastic CI for AWS time-of-check-time-of-use race condition vulnerability","description":"A time-of-check-time-of-use race condition vulnerability in Buildkite Elastic CI for AWS versions prior to 6.7.1 and 5.22.5 allows the buildkite-agent user to bypass a symbolic link check for the PIPELINE_PATH variable in the fix-buildkite-agent-builds-permissions script.","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00195,"percentile":0.09202,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-367"],"published":"2023-12-22T00:00:00Z","modified":"2026-10-28T02:30:39Z","fixes":[{"ecosystem":"Go","package":"github.com/buildkite/elastic-ci-stack-for-aws/v6","fixed_in":["6.7.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/buildkite/elastic-ci-stack-for-aws/v6","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.7.1"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/buildkite/elastic-ci-stack-for-aws/v6","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"6.7.1"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/buildkite/elastic-ci-stack-for-aws","ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/buildkite/elastic-ci-stack-for-aws/v5","ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/buildkite/elastic-ci-stack-for-aws/v6","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"6.7.1"}]}]}],"products":[{"vendor":"buildkite","product":"elastic_ci_stack"}],"references":[{"url":"https://github.com/atredispartners/advisories/blob/master/ATREDIS-2023-0003.md","tags":["x_transferred","Exploit","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-43741","tags":["advisory"]},{"url":"https://github.com/buildkite/elastic-ci-stack-for-aws/commit/edad0b158ea10a6647bb1c84629d93f5c3d8770e","tags":["web","fix"]},{"url":"https://github.com/advisories/GHSA-r5hg-349q-mg2q","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43741.json","tags":["advisory"]},{"url":"https://github.com/buildkite/elastic-ci-stack-for-aws","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-43741","description":"A time-of-check-time-of-use race condition vulnerability in Buildkite Elastic CI for AWS versions prior to 6.7.1 and 5.22.5 allows the buildkite-agent user to bypass a symbolic link check for the PIPELINE_PATH variable in the fix-buildkite-agent-builds-permissions 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