CVE-2026-88390 | BDVDB-2026-378686 Detail
Description#
An out-of-bounds write vulnerability in jslGetTokenValueAsString() in Espruino 2v29 (commit bffc6d0) allows crafted JavaScript input containing an overlong token to trigger a one-byte write beyond the JsLex.token buffer in RELEASE/NO_ASSERT builds. The out-of-bounds write corrupts the adjacent tokenValue pointer, resulting in memory corruption and potentially causing application crashes or denial of service.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
- CWE-787 Out-of-bounds Write
References#
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.