An out-of-bounds read vulnerability exists in the schema lexer of flatcc 4c3b999e. When an exact-length FlatBuffers schema ends with an unterminated quotation mark, the C-string scanning logic in lex() dereferences the input pointer after it has reached the end of the buffer. A specially crafted schema can trigger a one-byte heap buffer over-read, resulting in application crash and denial of service.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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Fixes
Solution
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Workaround
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References
History
Tue, 22 Sep 2026 19:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | An out-of-bounds read vulnerability exists in the schema lexer of flatcc 4c3b999e. When an exact-length FlatBuffers schema ends with an unterminated quotation mark, the C-string scanning logic in lex() dereferences the input pointer after it has reached the end of the buffer. A specially crafted schema can trigger a one-byte heap buffer over-read, resulting in application crash and denial of service. | |
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Projects
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MITRE
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-09-22T19:42:46.188Z
Reserved: 2026-09-10T00:00:00.000Z
Link: CVE-2026-88345
Vulnrichment
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NVD
Status : Received
Published: 2026-09-22T20:17:10.613
Modified: 2026-09-22T20:17:10.613
Link: CVE-2026-88345
Redhat
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OpenCVE Enrichment
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Weaknesses
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