Vulnerability Description
An out-of-bounds read vulnerability exists in the schema lexer of flatcc 4c3b999e. When an exact-length FlatBuffers schema buffer ends with a digit, the integer digit-scan loop in lex() advances past the end of the input buffer and dereferences the out-of-bounds pointer. A specially crafted schema can trigger a one-byte heap buffer over-read, resulting in application crash and denial of service.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/dvidelabs/flatcc/issues/384
- https://github.com/jimjag/flatcc/commit/c1dcc8ecd1a74b1e9e724ec7dc98828a5c95528e
- https://github.com/dvidelabs/flatcc/issues/384
FAQ
What is CVE-2026-88344?
CVE-2026-88344 is a vulnerability with a CVSS score of 7.5 (HIGH). An out-of-bounds read vulnerability exists in the schema lexer of flatcc 4c3b999e. When an exact-length FlatBuffers schema buffer ends with a digit, the integer digit-scan loop in lex() advances past ...
How severe is CVE-2026-88344?
CVE-2026-88344 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-88344?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.