CVE-2026-88390

HIGHCVSS 7.70% EPSS

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.

Published 2026-09-24 · last modified 2026-09-24

Full record at NVD ↗

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Ncerio by BeyondNets · data from NVD, CISA KEV, EPSS.