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.
Published: 2026-09-22
Score: n/a
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Advisories

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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.
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-22T19:42:46.188Z

Reserved: 2026-09-10T00:00:00.000Z

Link: CVE-2026-88345

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-22T20:17:10.613

Modified: 2026-09-22T20:17:10.613

Link: CVE-2026-88345

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses

No weakness.