CVE-2026-16270 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

No data.

References

Link	Providers
https://cert.pl/posts/2026/07/CVE-2026-16270
https://github.com/open-mercato/open-mercato/pull/1996
https://www.openmercato.com/

History

Wed, 22 Jul 2026 19:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 22 Jul 2026 13:00:00 +0000

Type	Values Removed	Values Added
Description		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.
Title		ReDoS in Open Mercato
Weaknesses		CWE-1333
References		https://cert.pl/posts/2026/07/CVE-2026-16270 https://github.com/open-mercato/open-mercato/pull/1996 https://www.openmercato.com/
Metrics		cvssV4_0 `{'score': 6.9, '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'}`

MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published: 2026-07-22T12:37:13.205Z

Updated: 2026-07-22T18:55:41.693Z

Reserved: 2026-07-20T09:17:36.606Z

Link: CVE-2026-16270

Vulnrichment

Updated: 2026-07-22T18:55:37.238Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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