CVE-2026-116733: dvidelabs flatcc · Out-of-bounds Read
Affects dvidelabs flatccSource CVE Database V5
Not known to be exploited · CVSS 6.3 Medium.
Data as of 26 Oct 2026, 22:16 UTC
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 26 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| dvidelabsflatcc | Affected
| Fixed in– |
GitHubflatccpkg:github/flatccOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should avoid processing untrusted JSON inputs that end with a decimal point using vulnerable flatcc versions. Monitor vendor advisories for updates and apply patches once available.
Description
CVE-2026-116733 is an out-of-bounds read vulnerability in flatcc versions up to 0.6.4. It occurs in the __flatcc_json_parser_number function when parsing JSON numbers ending with a decimal point. This flaw allows attackers to read beyond the input buffer, potentially causing application crashes.
References
- github.com/dvidelabs/flatcc/commit/356792dc155a9e685acdfe0ec1e209bdadcb4ab9 (opens in a new tab)
- github.com/dvidelabs/flatcc (opens in a new tab)
- github.com/dvidelabs/flatcc/blob/v0.6.4/src/runtime/json_parser.c (opens in a new tab)
- hackmd.io/@haindpwn/flatcc-json-number-oob-read (opens in a new tab)
- vulncheck.com/advisories/flatcc-through-0.6.4-out-of-bounds-read-via-flatcc-json-parser-number (opens in a new tab)