What’s Vulnerable › Vulnerabilities

CVE-2026-90786: Dvidelabs flatcc Duplicate Symbol semantics.c align_order_members assertion

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-14 · updated 2026-09-15
• Weakness: CWE-617

Description

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.

Affected products

• Dvidelabs flatcc: 0.6.0, 0.6.1, 0.6.2, 0.6.3

References

• https://github.com/dvidelabs/flatcc/
• https://github.com/dvidelabs/flatcc/issues/387
• https://github.com/jimjag/flatcc/commit/8b19ba4e992ebcad7f5970704d1afc5507fa5205
• https://vuldb.com/cve/CVE-2026-90786
• https://vuldb.com/submit/919201
• https://vuldb.com/vuln/403292
• https://vuldb.com/vuln/403292/cti

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