CVE-2026-61795
- Source
- https://cve.org/CVERecord?id=CVE-2026-61795
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61795.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-61795
- Aliases
- Published
- 2026-09-18T16:31:42Z
- Modified
- 2026-10-28T02:30:32Z
- Severity
-
- 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
- Summary
- Capsule: hostnameRegexHandler.OnUpdate validates stale (old) Tenant regex, allowing invalid AllowedHostnames regex to bypass webhook validation
- Details
-
Capsule is a multi-tenancy and policy-based framework for Kubernetes. From 0.13.0 until 0.13.7, hostnameRegexHandler.OnUpdate in internal/webhook/tenant/validation/hostname_regex.go reverses the new and old Tenant parameters and validates the previous AllowedHostnames.Regex instead of the submitted value. A cluster administrator can therefore store a malformed AllowedHostnames.Regex after the webhook accepts the update based on stale valid state. Subsequent Ingress creation or update reaches validate_hostnames.go, which evaluates the malformed pattern, ignores the regular-expression error, and treats every hostname as unmatched, blocking Ingress operations for the affected tenant until an administrator repairs the Tenant configuration. This issue is fixed in version 0.13.7.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-697" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61795.json" }- References
-
- https://github.com/projectcapsule/capsule/releases/tag/v0.13.7
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61795.json
- https://github.com/projectcapsule/capsule/security/advisories/GHSA-f94q-w3w8-cj67
- https://nvd.nist.gov/vuln/detail/CVE-2026-61795
- https://github.com/projectcapsule/capsule/commit/8d89d6865df6f41c7faa22fc9e807a57b01bfd0e
- https://github.com/projectcapsule/capsule/pull/1983
Affected packages
Git / github.com/projectcapsule/capsule
Affected ranges
- Type
- GIT
- Repo
- https://github.com/projectcapsule/capsule
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0.13.0" }, { "fixed": "0.13.7" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "8d89d6865df6f41c7faa22fc9e807a57b01bfd0e" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v0.13.7", "range": [ { "fixed": "8d89d6865df6f41c7faa22fc9e807a57b01bfd0e" } ], "source": "REFERENCES_TAG" }, { "range": [ { "introduced": "0" }, { "fixed": "0.13.7" } ], "source": "DESCRIPTION" } ] }