Vulnerability in Dvidelabs Flatcc
CVE-2026-90786
A vulnerability was determined in Dvidelabs flatcc up to 0.6.3. This impacts the function align_order_members of the file src/compiler/semantics.c of the component Duplicate Symbol Handler. This manipulation causes reachable assertion. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Patch name: 8b19ba4e992ebcad7f5970704d1afc5507fa5205. To fix this issue, it is recommended to deploy a patch.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.007 (54.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Dvidelabs Flatcc — versions 0.6.0, 0.6.1, 0.6.2
Weakness classification (CWE)
References
- vuldb.com/vuln/403292 (technical-description, vdb-entry)
- vuldb.com/vuln/403292/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-90786 (third-party-advisory)
- vuldb.com/submit/919201 (third-party-advisory)
- github.com/dvidelabs/flatcc/issues/387 (issue-tracking, exploit)
- github.com/jimjag/flatcc/commit/8b19ba4e992ebcad7f5970704d1afc5507fa5205 (patch)
- github.com/dvidelabs/flatcc/ (product)
Frequently asked questions
- What is CVE-2026-90786?
- CVE-2026-90786 is a medium-severity vulnerability in Dvidelabs Flatcc, classified under Reachable Assertion. CVSS score: 5.3/10. Published 2026-09-14.
- How severe is CVE-2026-90786?
- Medium severity. CVSS v3 base score is 5.3 out of 10.