SEPTEMBER 17, 2026
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Case File

CVE-2026-86716

HIGH · CVSS 7.3 EPSS 0.35% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-08 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

A heap-based buffer overflow vulnerability exists in the skip_spaces_and_comments function of Cesanta mJS versions up to 1.26, allowing for remote exploitation. This flaw could lead to arbitrary code execution, posing significant risks to applications utilizing this library. Organizations using Cesanta mJS should prioritize patching or mitigating this vulnerability to protect against potential attacks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-86716
Severity
HIGH
CVSS
7.3
EPSS
0.35%

Original NVD Description

A vulnerability was determined in Cesanta mJS up to 1.26. Affected is the function skip_spaces_and_comments of the file src/mjs_tok.c. Executing a manipulation can lead to heap-based buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.