CVE-2026-90785 Details
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.
A vulnerability exists in Dvidelabs Flatcc versions through 0.6.3 within the Struct Analysis component. The issue arises in the 'analyze_struct' function of 'src/compiler/semantics.c', where the parser fails to reject mutually recursive struct references. This oversight allows for a circular reference between two structs to be processed, leading to a reachable assertion that causes the compiler to abort. The vulnerability can be exploited remotely, and has been publicly disclosed.
Users can update to Flatcc version 0.6.4 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 14, 2026CISA-ADP
Assessed Sep 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/dvidelabs/flatcc/ | [email protected] | Source CodeVendor |
| https://github.com/dvidelabs/flatcc/commit/f705032346ee39efd7d3848c50b73d455d28d06d | [email protected] | Source CodeVendor |
| https://github.com/dvidelabs/flatcc/issues/388 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://vuldb.com/cve/CVE-2026-90785 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/919200 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/403291 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/403291/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-617 | Reachable Assertion | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Dvidelabs flatcc | <= 0.6.3 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 15, 2026 | CVE Modified | CISA-ADP |
| Sep 14, 2026 | New CVE Received | [email protected] |