Vulnerability · Published Jul 5, 2026 · Assigned by CIRCL

CVE-2026-59509Unauthenticated arbitrary MongoDB collection read in cve-search

Critical 9.2

In plain English

A critical-severity improper input validation in cve-search from cve-search. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei.

Severity (CVSS 4.0)9.2Critical

Exploit odds (30 days)1.4%top 26.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack tooling1Nuclei

Official description

An unauthenticated improper input validation vulnerability in the POST /fetch_cve_data endpoint in cve-search. A remote attacker can manipulate request parameters controlling the MongoDB collection, projected fields, and regular-expression filters to read arbitrary application MongoDB collections. This can expose administrative usernames and password hashes from the mgmt_users collection, enabling offline password cracking and potential administrative account compromise.

Affected products (as reported)

Vendor	Product	Versions
cve-search	cve-search	v4.0 – through v6.0.0

Weakness: CWE-20 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

References

https://github.com/cve-search/cve-search/pull/1218 patch
https://github.com/cve-search/cve-search/issues/1217 exploit, technical-description