Missing Encryption of Sensitive Data in ejson - #VU141366
Published: August 8, 2026
Vulnerability identifier: #VU141366
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-311
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to missing encryption of sensitive data in the ejson encryption walker when processing a specific nested JSON shape. A local user can encrypt a crafted file containing an array with an object whose final key begins with an underscore and a later sibling string value to disclose sensitive information.
The issue is silent because encryption and decryption use the same walker, so an affected file can round-trip without reporting the missing encryption.
Affected software
ejson
Remediation
Install security update from vendor's website.
ejson - update to 1.5.5