{"id":"CVE-2026-100861","title":"heym before 0.0.105 fails to apply egress guards to integration services that use credential-supplied base URLs, allowing authenticated users to bypass SSRF protections","summary":"heym before 0.0.105 fails to apply egress guards to integration services that use credential-supplied base URLs, allowing authenticated users to bypass SSRF protections. Attackers can configure credentials pointing to loopback, private, …","severity":"medium","cvss":5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","cwe":["CWE-918"],"vendor":"heymrun","product":"heym","affected":["heym < 0.0.105"],"published":"2026-09-27","updated":"2026-09-28","sourceUpdated":"2026-09-28T20:57:50.143","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-100861","references":[{"url":"https://github.com/heymrun/heym/security/advisories/GHSA-xchj-mw74-2232","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/heym-before-0.0.105-ssrf-via-credential-controlled-base-urls","label":"disclosure@vulncheck.com"},{"url":"https://github.com/heymrun/heym/security/advisories/GHSA-xchj-mw74-2232","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-28T13:38:17.642917Z"},"ingestedAt":"2026-09-27T02:41:45.581Z","epss":0.00228,"epssPercentile":0.13521,"slug":"CVE-2026-100861","body":"## Overview\n\nheym before 0.0.105 fails to apply egress guards to integration services that use credential-supplied base URLs, allowing authenticated users to bypass SSRF protections. Attackers can configure credentials pointing to loopback, private, or cloud-metadata addresses and read internal service responses returned as workflow node output.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":27.5,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":211948,"id":"CVE-2026-100861","ts":1790604799618,"field":"exploit_available","old":"false","new":"true"}]}