{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-105396", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-05T10:56:23.833Z", "datePublished": "2026-10-05T11:09:45.174Z", "dateUpdated": "2026-10-05T14:13:10.868Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-05T11:09:45.174Z"}, "datePublic": "2026-09-20T00:00:00.000Z", "title": "Heym before v0.0.112 HITL Review Token Leak via Spoofable Origin Header", "descriptions": [{"lang": "en", "value": "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 workflows with forged headers so reviewer notifications point to attacker domains, capturing capability tokens to submit decisions executed with owner credentials."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Origin Validation Error", "cweId": "CWE-346", "type": "CWE"}]}], "affected": [{"vendor": "heymrun", "product": "heym", "defaultStatus": "unaffected", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "0.0.112"}, {"version": "0.0.112", "status": "unaffected", "versionType": "semver"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/heymrun/heym/security/advisories/GHSA-6rv3-wh25-7pg5", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-6rv3-wh25-7pg5)"}, {"name": "VulnCheck Advisory: Heym before v0.0.112 HITL Review Token Leak via Spoofable Origin Header", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/heym-before-0.0.112-hitl-review-token-leak-via-spoofable-origin-header"}], "credits": [{"lang": "en", "value": "xiaodu55", "type": "reporter"}, {"lang": "en", "value": "mbakgun", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-05T14:13:02.577108Z", "id": "CVE-2026-105396", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-05T14:13:10.868Z"}}]}}

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{}

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