Medium severity · published Oct 12, 2026
CVE-2026-109362
Heym v0.0.5 before v0.0.113 Broken Access Control via Workflow Execution Tokens
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
Heym v0.0.5 before v0.0.113 contains a broken access control vulnerability that allows former collaborators to keep executing JWT-auth workflows by reusing scoped workflow:execute tokens after share removal. Attackers can mint a token with a TTL up to 10 years, which the owner cannot list or revoke, and repeatedly run the workflow consuming shared credentials.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 12% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HE
heym · heymrun
0.0.5 before 0.0.113 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109362
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109362
vendor-advisory
https://github.com/heymrun/heym/security/advisories/GHSA-pwr6-6377-3cgv
third-party-advisory
https://www.vulncheck.com/advisories/heym-0.0.5-before-0.0.113-broken-access-control-via-workflow-execution-tokens
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