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Advisories

Heym before v0.0.112 HITL Review Token Leak via Spoofable Origin Header

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severity
medium
date
Affecting

  • heym >= 0, < 0.0.112

CWE
  • CWE-346 Origin Validation Error
CVSS
5.3
CVSS V4 Vector
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
Credit
xiaodu55, mbakgun
Description
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.

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