CVE-2026-116733
flatcc through 0.6.4 Out-of-Bounds Read via __flatcc_json_parser_number
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fix or patch referenced
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
flatcc, a C library for FlatBuffers that includes a JSON parser, is affected by this vulnerability. An attacker who supplies specially crafted JSON that ends right after a decimal point can cause the parser to read past the end of its input buffer, which may crash applications that use it.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
flatcc through 0.6.4 contains an out-of-bounds read vulnerability in __flatcc_json_parser_number that allows attackers to read past the input buffer via numbers ending in a decimal point. Attackers can supply untrusted JSON ending immediately after a decimal point to generated parsers, crashing applications when the buffer ends at an unmapped page.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- dvidelabs flatcc
through 0.6.4