{"id":"CVE-2026-105396","title":"Heym before v0.0.112 contains a token leakage vulnerability in build_public_base_url() that allows unauthenticated attackers to redirect HITL review links by spoofing Origin or X-Forwarded-Host headers","summary":"Heym before v0.0.112 contains a token leakage vulnerability in build_public_base_url() that allows unauthenticated attackers to redirect HITL review links by spoofing Origin or X-Forwarded-Host headers. Attackers can trigger anonymous wo…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","cwe":["CWE-346"],"vendor":"heymrun","product":"heym","affected":["heym < 0.0.112"],"published":"2026-10-05","updated":"2026-10-05","sourceUpdated":"2026-10-05T15:17:20.900","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-105396","references":[{"url":"https://github.com/heymrun/heym/security/advisories/GHSA-6rv3-wh25-7pg5","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/heym-before-0.0.112-hitl-review-token-leak-via-spoofable-origin-header","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-05T14:13:02.577108Z"},"ingestedAt":"2026-10-05T12:19:22.670Z","slug":"CVE-2026-105396","body":"## Overview\n\nHeym before v0.0.112 contains a token leakage vulnerability in build_public_base_url() that allows unauthenticated attackers to redirect HITL review links by spoofing Origin or X-Forwarded-Host headers. Attackers can trigger anonymous workflows with forged headers so reviewer notifications point to attacker domains, capturing capability tokens to submit decisions executed with owner credentials.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}