Prototype pollution in Jodit Editor - CVE-2026-54756
Published: July 27, 2026
Vulnerability identifier: #VU139517
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2026-54756
CWE-ID: CWE-1321
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: xdan (Valeriy)
Affected software:
Jodit Editor
Jodit Editor
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary JavaScript code.
The vulnerability exists due to improper input validation within Jodit.configure(options) and the internal ConfigMerge, ConfigProto helpers. A remote attacker can pass specially crafted input to the application and perform prototype pollution, which can result in information disclosure or data manipulation.
How to mitigate CVE-2026-54756
Install updates from vendor's website.