A vulnerability stemming from floating-point arithmetic precision errors exists in the QuickJS engine's implementation
Source GCVE Database
Not known to be exploited · CVSS 6.5 Medium.
Data as of 29 Oct 2026, 23:15 UTC
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 16 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 29 Oct 2026.
What to do
AI-suggested
Until a fix is released, avoid using untrusted input for the fromIndex argument in TypedArray.prototype.indexOf() or apply input validation to prevent extremely small negative values.
Description
A floating-point precision error in QuickJS's TypedArray.prototype.indexOf() allows an out-of-bounds read of one element past the end of an array when a very small negative fromIndex is used. This can lead to potential information disclosure of adjacent memory contents.