CVE-2026-18744 CVE-2026-18744
Authenticated users can access other vendors' confidential case statements and status by manipulating member IDs, bypassing tenant isolation controls.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18744?
CVE-2026-18744 is a medium-severity missing authorization vulnerability in CERT/CC VINCE, published on 12 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Any authenticated case participant can fetch any OTHER vendor's CaseStatement + per-vul CaseMemberStatus by supplying that member's id — test_func only checks _is_my_case, not ownership of kwargs['member']. Bypasses share_status; leaks embargoed vendor affected/not-affected + statement text cross-tenant.
Weakness: CWE-639
Which versions are affected by CVE-2026-18744?
How do I fix CVE-2026-18744?
No fix has been published for CVE-2026-18744 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-18744 being exploited?
There is no known exploitation of CVE-2026-18744 in the wild and no public exploit code.
Sources
Also known as GHSA-8pgg-45wg-rcx3.