CVE-2026-16270

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.

References

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