{"id":"CVE-2026-90786","summary":"Dvidelabs flatcc Duplicate Symbol semantics.c align_order_members assertion","details":"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.","modified":"2026-09-17T08:06:09.461735Z","published":"2026-09-14T13:30:08.902Z","database_specific":{"cwe_ids":["CWE-617"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90786.json","cna_assigner":"VulDB"},"references":[{"type":"WEB","url":"https://github.com/dvidelabs/flatcc/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90786.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90786"},{"type":"ADVISORY","url":"https://vuldb.com/cve/CVE-2026-90786"},{"type":"ADVISORY","url":"https://vuldb.com/submit/919201"},{"type":"ADVISORY","url":"https://vuldb.com/vuln/403292"},{"type":"REPORT","url":"https://github.com/dvidelabs/flatcc/issues/387"},{"type":"REPORT","url":"https://vuldb.com/vuln/403292/cti"},{"type":"FIX","url":"https://github.com/jimjag/flatcc/commit/8b19ba4e992ebcad7f5970704d1afc5507fa5205"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/dvidelabs/flatcc","events":[{"introduced":"571dc4100670b0df51f727dc6ab747a8851f4695"},{"last_affected":"503799885b5517ea9d316c17e35471178c09e35a"}],"database_specific":{"extracted_events":[{"introduced":"0.6.0"},{"last_affected":"0.6.0"},{"introduced":"0.6.1"},{"last_affected":"0.6.1"},{"introduced":"0.6.2"},{"last_affected":"0.6.2"},{"introduced":"0.6.3"},{"last_affected":"0.6.3"}],"source":"AFFECTED_FIELD"}},{"type":"GIT","repo":"https://github.com/jimjag/flatcc","events":[{"introduced":"0"},{"fixed":"8b19ba4e992ebcad7f5970704d1afc5507fa5205"}],"database_specific":{"source":"REFERENCES"}}],"versions":["0.6.0","0.6.1","0.6.2","0.6.3","v0.6.3","v0.6.2","v0.6.1","v0.6.0","v0.5.3","v0.5.2","v0.5.1","v0.5.0","v0.4.3","v0.4.2","v0.4.1","v0.4.0","v0.3.5a","v0.3.5","v0.3.4","v0.3.3","v0.3.2","v0.3.1","v0.3.0","v0.2.1","v0.2.0","v0.1.1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90786.json","vanir_signatures_modified":"2026-09-17T08:06:09Z","vanir_signatures":[{"target":{"file":"src/compiler/semantics.c","function":"fb_build_schema"},"deprecated":false,"digest":{"function_hash":"91234820027102866291302776369038616003","length":3790},"id":"CVE-2026-90786-afbe525c","signature_type":"Function","signature_version":"v1","source":"https://github.com/jimjag/flatcc/commit/8b19ba4e992ebcad7f5970704d1afc5507fa5205"},{"deprecated":false,"digest":{"line_hashes":["246178803478215092019128205557086340375","243251668757354800866511318249068452292","297546802814005259285279237511438841185","121620361952861738372202542618025158421","309373148170215204447754345424177902299","302693838417610601353191165598457216029","87744330303238075008861954941591563035","252344798771845095691339293490865754581"],"threshold":0.9},"id":"CVE-2026-90786-cf5bd63e","signature_type":"Line","signature_version":"v1","source":"https://github.com/jimjag/flatcc/commit/8b19ba4e992ebcad7f5970704d1afc5507fa5205","target":{"file":"src/compiler/semantics.c"}},{"signature_version":"v1","source":"https://github.com/jimjag/flatcc/commit/8b19ba4e992ebcad7f5970704d1afc5507fa5205","target":{"file":"src/compiler/semantics.c","function":"process_table"},"deprecated":false,"digest":{"function_hash":"45323300188113434196277849483333006658","length":13641},"id":"CVE-2026-90786-feb1a30d","signature_type":"Function"}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"}]}