Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CVE-2026-42334
Summary
This vulnerability allows bypassing Mongoose's sanitizeFilter query sanitization mechanism via the `$nor` operator. Issue has been patched in 6.13.9, 7.8.9, 8.22.1, 9.1.6.
- LOW
- NETWORK
- NONE
- UNCHANGED
- NONE
- NONE
- HIGH
- NONE
CWE-74 - Injection
Listed as the number one web application security risk on the 'OWASP Top Ten', injection attacks are widespread and dangerous, especially in legacy applications. Injection attacks are a class of vulnerabilities in which an attacker injects untrusted data into a web application that gets processed by an interpreter, altering the program's execution. This can result in data loss/theft, loss of data integrity, denial of service, and even compromising the entire system.
References
Advisory Timeline
- Published