{"id":"CVE-2026-61795","title":"Capsule is a multi-tenancy and policy-based framework for Kubernetes","summary":"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 validate…","severity":"medium","cvss":6.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H","cwe":["CWE-697"],"vendor":"projectcapsule","product":"capsule","affected":["capsule >= 0.13.0, < 0.13.7"],"patched":["github.com/projectcapsule/capsule 0.13.7"],"published":"2026-09-18","updated":"2026-09-21","sourceUpdated":"2026-09-21T21:17:07.953","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-61795","references":[{"url":"https://github.com/projectcapsule/capsule/commit/8d89d6865df6f41c7faa22fc9e807a57b01bfd0e","label":"security-advisories@github.com"},{"url":"https://github.com/projectcapsule/capsule/pull/1983","label":"security-advisories@github.com"},{"url":"https://github.com/projectcapsule/capsule/releases/tag/v0.13.7","label":"security-advisories@github.com"},{"url":"https://github.com/projectcapsule/capsule/security/advisories/GHSA-f94q-w3w8-cj67","label":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-f94q-w3w8-cj67"},{"url":"https://github.com/projectcapsule/capsule"}],"tags":["nvd","cve.org","ghsa","go","osv"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-18T19:30:32.778857Z"},"epss":0.00327,"epssPercentile":0.25933,"aliases":["GHSA-f94q-w3w8-cj67"],"ecosystem":"go","ingestedAt":"2026-09-18T16:45:41.406Z","slug":"CVE-2026-61795","body":"## Overview\n\nCapsule 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-61795)\n\nAffected packages:\n\n- `github.com/projectcapsule/capsule >= 0.13.0, < 0.13.7`\n\nPatched in:\n\n- `github.com/projectcapsule/capsule 0.13.7`\n\nSource: https://github.com/advisories/GHSA-f94q-w3w8-cj67","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":37.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}