Prototype pollution in draw.io - CVE-2026-115762
Published: July 30, 2026 / Updated: November 5, 2026
Vulnerability identifier: #VU140051
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-115762
CWE-ID: CWE-1321
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary JavaScript code.
The vulnerability exists due to improper input validation in mxGraphMlCodec. A remote attacker can pass specially crafted input to the application and perform prototype pollution, which can result in information disclosure or data manipulation.
Affected software
draw.io
How to mitigate CVE-2026-115762
Install updates from vendor's website.
draw.io - update to 31.1.5