CVE-2026-16270 MEDIUM

CVE-2026-16270: ReDoS in Open Mercato

Vendor Open Mercato
Product Open Mercato
Weakness CWE-1333
Published July 22, 2026
Last update July 22, 2026

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Open Mercato does not validate regex rules. An attacker with privileges to create the regex rule can add an unsafe regex to a field. When someone provide the proper string it can result in a DoS attack. This issue was fixed in version 0.6.4.

Key dates

02Disclosure timeline

July 22, 2026 CVE published
July 22, 2026 Record updated