CVE-2026-105396
5.3
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
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 workflows with forged headers so reviewer notifications point to attacker domains, capturing capability tokens to submit decisions executed with owner credentials.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| heymrun | heym | 0 < 0.0.112 | affected |
| heymrun | heym | 0.0.112 | unaffected |
Weaknesses
- CWE-346: Origin Validation Error
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/heymrun/heym/security/advisories/GHSA-6rv3-wh25-7pg5
- https://www.vulncheck.com/advisories/heym-before-0.0.112-hitl-review-token-leak-via-spoofable-origin-header
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