{"id":"CVE-2026-26287","summary":"External Secrets Operator: label enforcement bypass in webhook generator enables secret exfiltration","details":"External Secrets Operator reads information from a third-party service and automatically injects the values as Kubernetes Secrets. Starting in version 0.10.0 and prior to version 1.3.2, a bug in the `webhook` generator initialization order incorrectly cleared the label-enforcement flag (`EnforceLabels`) after it was set, resulting in the provider-side check for `external-secrets.io/type=webhook` being skipped (and the operation to succeed while it should have failed with `secret does not contain needed label 'external-secrets.io/type: webhook'. Update secret label to use it with webhook`. Version 1.3.2 contains a patch.","aliases":["GHSA-q7hv-xx6h-q2x8"],"modified":"2026-10-07T02:45:17.490387214Z","published":"2026-10-06T15:31:56.088Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26287.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-696"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26287.json"},{"type":"FIX","url":"https://github.com/external-secrets/external-secrets/commit/25aa09275861e3ed6fc5d2a1a60b9ac3df4a93ba"},{"type":"FIX","url":"https://github.com/external-secrets/external-secrets/pull/5901"},{"type":"WEB","url":"https://github.com/external-secrets/external-secrets/releases/tag/v1.3.2"},{"type":"ADVISORY","url":"https://github.com/external-secrets/external-secrets/security/advisories/GHSA-q7hv-xx6h-q2x8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26287"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/external-secrets/external-secrets","events":[{"introduced":"eae808d8510ffe945dc1b3dfef3c76ac7f968198"},{"fixed":"a2ec42276c5ec6ed46232648f2397823b9b84aaf"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0.10.0"},{"fixed":"1.3.2"}]}}],"versions":["helm-chart-1.3.1","v1.3.1","v1.3.0","helm-chart-1.2.1","v1.2.1","helm-chart-1.2.0","v1.2.0","helm-chart-1.1.1","v1.1.1","helm-chart-1.1.0","v1.1.0","helm-chart-1.0.0","v1.0.0","v0.2.1-esoctl","v0.2.0-esoctl","helm-chart-0.20.4","v0.20.4","helm-chart-0.20.3","v0.20.3","helm-chart-0.20.2","v0.20.2","helm-chart-0.20.1","v0.20.1","v0.20.0","helm-chart-0.19.2","v0.19.2","v0.19.1","v0.19.0","v0.18.2","v0.18.1","v0.18.0","helm-chart-0.18.0-rc1","v0.18.0-rc1","v0.17.1-rc1","helm-chart-0.17.0","v0.17.0","v0.16.2","v0.16.1","helm-chart-0.16.0","v0.16.0","helm-chart-0.15.1","v0.15.1","v0.15.0","v0.14.4","v0.14.3","helm-chart-0.14.2","v0.14.2","helm-chart-0.14.1","v0.14.1","v0.14.0","v0.13.0","v0.1.0-esoctl","v0.1.0-render","v0.12.1","v0.12.0","v0.11.0","v0.10.7","helm-chart-0.10.6","v0.10.6","v0.10.5","v0.10.4","v0.10.3","helm-chart-0.10.2","v0.10.2","helm-chart-0.10.1","v0.10.1","helm-chart-0.10.0","v0.10.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-26287.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N"}]}