Is there a public exploit for CVE-2026-67540?

No public exploit for CVE-2026-67540 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-67540?

CVE-2026-67540 scores CVSS 6.5 (v3.1), rated medium.

What does CVE-2026-67540 affect?

CVE-2026-67540 affects heymrun heym.

6.5 Medium

Heym builds and runs agentic systems and business-process automations on self-hosted infrastructure.

CVE-2026-67540

Heym builds and runs agentic systems and business-process automations on self-hosted infrastructure. Prior to version 0.0.70, getworkflowtemplate / getnodetemplate fetches a template by ID with no visibility / author / sharedwith predicate, so any authenticated user can read (and use) any other tenant's private (visibility=specificusers) template — including its full node/edge graph and the email addresses it was shared with. The list endpoint enforces visibility correctly; the single-item get/use paths do not. This issue has been patched in version 0.0.70.

Assessment

CVSS: 6.5 (v3.1)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 11 November 2026
Last updated: 11 November 2026
Affected: heymrun · heym
Assigner: GitHub_M

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

At the source

EUVD (ENISA)

References

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Query this programmatically

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