{"id":"CVE-2026-26287","state":"PUBLISHED","title":"External Secrets Operator: label enforcement bypass in webhook generator enables secret exfiltration","description":"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.","publishedAt":"2026-10-06T15:31:56.088Z","updatedAt":"2026-10-06T17:21:44.292Z","severity":{"score":7.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["external-secrets external-secrets"],"affected":[{"vendor":"external-secrets","product":"external-secrets","versions":[{"version":">= 0.10.0, < 1.3.2","status":"affected"}]}],"references":["https://github.com/external-secrets/external-secrets/security/advisories/GHSA-q7hv-xx6h-q2x8","https://github.com/external-secrets/external-secrets/pull/5901","https://github.com/external-secrets/external-secrets/commit/25aa09275861e3ed6fc5d2a1a60b9ac3df4a93ba","https://github.com/external-secrets/external-secrets/releases/tag/v1.3.2"],"weaknesses":["CWE-696"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/26xxx/CVE-2026-26287.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-26287","state":"PUBLISHED","datePublished":"2026-10-06T15:31:56.088Z","dateUpdated":"2026-10-06T17:21:44.292Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-02-12T17:10:53.415Z"},"containers":{"cna":{"title":"External Secrets Operator: label enforcement bypass in webhook generator enables secret exfiltration","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"external-secrets","product":"external-secrets","versions":[{"version":">= 0.10.0, < 1.3.2","status":"affected"}]}],"references":[{"url":"https://github.com/external-secrets/external-secrets/security/advisories/GHSA-q7hv-xx6h-q2x8","name":"https://github.com/external-secrets/external-secrets/security/advisories/GHSA-q7hv-xx6h-q2x8","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/external-secrets/external-secrets/pull/5901","name":"https://github.com/external-secrets/external-secrets/pull/5901","tags":["x_refsource_MISC"]},{"url":"https://github.com/external-secrets/external-secrets/commit/25aa09275861e3ed6fc5d2a1a60b9ac3df4a93ba","name":"https://github.com/external-secrets/external-secrets/commit/25aa09275861e3ed6fc5d2a1a60b9ac3df4a93ba","tags":["x_refsource_MISC"]},{"url":"https://github.com/external-secrets/external-secrets/releases/tag/v1.3.2","name":"https://github.com/external-secrets/external-secrets/releases/tag/v1.3.2","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-696","lang":"en","description":"CWE-696: Incorrect Behavior Order","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-06T15:31:56.088Z"},"source":{"advisory":"GHSA-q7hv-xx6h-q2x8","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-06T17:21:33.262411Z","id":"CVE-2026-26287","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-06T17:21:44.292Z"}}]}}}