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 (3)
Core 3
Core References
Third Party Advisory third-party-advisory
https://cert.pl/posts/2026/07/CVE-2026-16270
Product product
https://www.openmercato.com/
Scores
CVSS v4
6.9
EPSS
0.0028
EPSS Percentile
20.0%
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-1333
Status
published
Products (1)
Open Mercato/Open Mercato
< 0.6.4
Published
Jul 22, 2026
Tracked Since
Jul 22, 2026