Medium severityGHSA Advisory· Published May 11, 2026· Updated May 13, 2026
CVE-2026-42875
CVE-2026-42875
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/external-secrets/external-secretsGo | < 2.4.0 | 2.4.0 |
Affected products
6- Range: < 2.4.0
- osv-coords5 versionspkg:apk/chainguard/external-secrets-operator-2.2pkg:apk/chainguard/external-secrets-operator-2.3pkg:apk/wolfi/external-secrets-operator-2.2pkg:apk/wolfi/external-secrets-operator-2.3pkg:golang/github.com/external-secrets/external-secrets
< 2.2.0-r13+ 4 more
- (no CPE)range: < 2.2.0-r13
- (no CPE)range: < 2.3.0-r11
- (no CPE)range: < 2.2.0-r13
- (no CPE)range: < 2.3.0-r11
- (no CPE)range: < 2.4.0
Patches
Vulnerability mechanics
References
3News mentions
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