Vulnerability · Published Sep 14, 2026 · Assigned by VulDB
CVE-2026-90785Dvidelabs flatcc Struct Analysis semantics.c analyze_struct assertion
Medium 5.3
In plain English
A medium-severity security flaw in flatcc from Dvidelabs. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).
Official description
A vulnerability was found in Dvidelabs flatcc up to 0.6.3. This affects the function analyze_struct of the file src/compiler/semantics.c of the component Struct Analysis. The manipulation results in reachable assertion. It is possible to launch the attack remotely. The exploit has been made public and could be used. The patch is identified as f705032346ee39efd7d3848c50b73d455d28d06d. A patch should be applied to remediate this issue.
Affected products (as reported)
Weakness: CWE-617 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
References
- VDB-403291 | Dvidelabs flatcc Struct Analysis semantics.c analyze_struct assertion vdb-entry, technical-description
- VDB-403291 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-90785 | CVE Analysis and Report third-party-advisory
- Submit #919200 | dvidelabs flatcc v0.6.3 Reachable Assertion third-party-advisory
- https://github.com/dvidelabs/flatcc/issues/388 exploit, issue-tracking
- https://github.com/dvidelabs/flatcc/commit/f705032346ee39efd7d3848c50b73d455d28d06d patch
- https://github.com/dvidelabs/flatcc/ product