CVE-2026-16270
MediumCVSS 6.9Exploitation Probability (EPSS)
Low risk39th percentile - higher than 39% of all known CVEs
Summary
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 provides the proper string it can result in a DoS attack. This issue was fixed in version 0.6.4.
Risk Assessment
An attacker with privileges can cause a denial of service by adding a malicious regex rule that, when matched by a user, leads to system overload.
Recommendation
Upgrade Open Mercato to version 0.6.4 or later, which fixes the issue.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS