{"id":"CVE-2026-110616","title":"NullHub through 2026.5.29 contains a missing authentication vulnerability that allows unauthenticated attackers to access the /api/* management API because the auth_token field defaults to null and is never assigned","summary":"NullHub through 2026.5.29 contains a missing authentication vulnerability that allows unauthenticated attackers to access the /api/* management API because the auth_token field defaults to null and is never assigned. Attackers sending re…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-306"],"published":"2026-10-14","updated":"2026-10-14","sourceUpdated":"2026-10-14T15:17:13.767","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-110616","references":[{"url":"https://github.com/nullclaw/nullhub","label":"disclosure@vulncheck.com"},{"url":"https://github.com/nullclaw/nullhub/blob/v2026.5.29/Dockerfile#L69-L71","label":"disclosure@vulncheck.com"},{"url":"https://github.com/nullclaw/nullhub/blob/v2026.5.29/src/api/settings.zig#L29-L54","label":"disclosure@vulncheck.com"},{"url":"https://github.com/nullclaw/nullhub/blob/v2026.5.29/src/server.zig#L546-L556","label":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/rJrLma3izg","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/nullhub-through-2026.5.29-missing-authentication-for-api-management-api","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"ingestedAt":"2026-10-14T15:36:14.007Z","vendor":"nullclaw","product":"NullHub","affected":["NullHub <= 2026.5.29"],"epss":0.00952,"epssPercentile":0.61122,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-10-20T01:13:06.030172Z"},"slug":"CVE-2026-110616","body":"## Overview\n\nNullHub through 2026.5.29 contains a missing authentication vulnerability that allows unauthenticated attackers to access the /api/* management API because the auth_token field defaults to null and is never assigned. Attackers sending requests without Authorization or Origin headers to non-loopback listeners can control agent instances, rewrite configurations including provider credentials, and manage cron jobs and MCP servers.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":57,"depthScoreParts":{"impact":44.6,"likelihood":0.2,"exploitation":12,"ransomware":0},"changes":[{"seq":225299,"id":"CVE-2026-110616","ts":1792461020207,"field":"exploit_available","old":"false","new":"true"}]}