Quick answers
- Is CVE-2026-88344 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-88344 being exploited in the wild.
- How severe is CVE-2026-88344?
- High severity, with a CVSS score of 7.5, published 22 September 2026.
- Which products and versions are affected?
- Dvidelabs Flatcc 4c3b999e and earlier.
- Is there a fix for CVE-2026-88344?
- A patch was published on 2026-09-22: Fix committed in c1dcc8e Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-88344 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-88344?
- Check whether you run Dvidelabs Flatcc at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The integer digit-scan loop in the lex() function fails to check buffer boundaries before dereferencing the input pointer when an exact-length schema buffer ends with a digit character. This results in a one-byte heap buffer over-read (CWE-122). The vulnerability requires processing a maliciously crafted FlatBuffers schema as input; a patch exists that adds a bounds check to the loop condition.
Affected products
- dvidelabs flatcc 4c3b999e and earlier
Timeline
- 2026-09-22: disclosed
- 2026-09-22: patched: Fix committed in c1dcc8e