{"cve":"CVE-2026-42875","nvd":{"published":"2026-05-11T20:25:44.143","modified":"2026-06-17T10:48:32.843","status":"Deferred","description":"External Secrets Operator reads information from a third-party service and automatically injects the values as Kubernetes Secrets. Prior to 2.4.0, Namespaced SecretStore resources that used CAProvider with type ConfigMap could resolve CA material from another namespace when caProvider.namespace was set. This bypassed the namespace boundary enforced for SecretStore-backed references in providers that rely on the shared runtime CA resolver. This vulnerability is fixed in 2.4.0.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","score":5.3},"cvss_v3":null,"cwes":["CWE-285","CWE-668"],"references":["https://github.com/external-secrets/external-secrets/security/advisories/GHSA-wv26-88m5-6h59"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:33:55.586217763+00:00"},"epss":{"cve":"CVE-2026-42875","score":0.0024,"percentile":0.15168,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-wv26-88m5-6h59","url":"https://osv.dev/vulnerability/GHSA-wv26-88m5-6h59","summary":"External Secrets Operator has Namespace Isolation Bypass in CAProvider ConfigMap Resolution for SecretStore","modified":"2026-09-10T03:50:47.914428146Z","packages":[{"ecosystem":"Go","name":"github.com/external-secrets/external-secrets","purl":"pkg:golang/github.com/external-secrets/external-secrets","ranges":["<2.4.0"],"fixed":["2.4.0"]}]},{"id":"GO-2026-5723","url":"https://osv.dev/vulnerability/GO-2026-5723","summary":"External Secrets Operator has Namespace Isolation Bypass in CAProvider ConfigMap Resolution for SecretStore in github.com/external-secrets/external-secrets","modified":"2026-06-25T23:01:40.048871514Z","packages":[{"ecosystem":"Go","name":"github.com/external-secrets/external-secrets","purl":"pkg:golang/github.com/external-secrets/external-secrets","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}