CVE-2026-26287

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Source
https://cve.org/CVERecord?id=CVE-2026-26287
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-26287.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-26287
Aliases
Downstream
Published
2026-10-06T15:31:56Z
Modified
2026-10-20T00:55:29Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N CVSS Calculator
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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-696"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26287.json"
}
References

Affected packages

Git / github.com/external-secrets/external-secrets

Affected ranges

Type
GIT
Repo
https://github.com/external-secrets/external-secrets
Events
Introduced
eae808d8510ffe945dc1b3dfef3c76ac7f968198
Fixed
a2ec42276c5ec6ed46232648f2397823b9b84aaf
Fixed
25aa09275861e3ed6fc5d2a1a60b9ac3df4a93ba
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0.10.0"
                },
                {
                    "fixed":  "1.3.2"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "25aa09275861e3ed6fc5d2a1a60b9ac3df4a93ba"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v1.3.2",
            "range":  [
                {
                    "fixed":  "a2ec42276c5ec6ed46232648f2397823b9b84aaf"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

helm-chart-0.*
helm-chart-0.10.0
helm-chart-0.10.1
helm-chart-0.10.2
helm-chart-0.10.6
helm-chart-0.14.1
helm-chart-0.14.2
helm-chart-0.15.1
helm-chart-0.16.0
helm-chart-0.17.0
helm-chart-0.18.0-rc1
helm-chart-0.19.2
helm-chart-0.20.1
helm-chart-0.20.2
helm-chart-0.20.3
helm-chart-0.20.4
helm-chart-1.*
helm-chart-1.0.0
helm-chart-1.1.0
helm-chart-1.1.1
helm-chart-1.2.0
helm-chart-1.2.1
helm-chart-1.3.1
v0.*
v0.1.0-esoctl
v0.1.0-render
v0.10.0
v0.10.1
v0.10.2
v0.10.3
v0.10.4
v0.10.5
v0.10.6
v0.10.7
v0.11.0
v0.12.0
v0.12.1
v0.13.0
v0.14.0
v0.14.1
v0.14.2
v0.14.3
v0.14.4
v0.15.0
v0.15.1
v0.16.0
v0.16.1
v0.16.2
v0.17.0
v0.17.1-rc1
v0.18.0
v0.18.0-rc1
v0.18.1
v0.18.2
v0.19.0
v0.19.1
v0.19.2
v0.2.0-esoctl
v0.2.1-esoctl
v0.20.0
v0.20.1
v0.20.2
v0.20.3
v0.20.4
v1.*
v1.0.0
v1.1.0
v1.1.1
v1.2.0
v1.2.1
v1.3.0
v1.3.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-26287.json"