{"id":"CVE-2026-16270","aliases":["EUVD-2026-47649","GHSA-gchv-qq48-9rjw"],"status":"published","title":"ReDoS in Open Mercato","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.\n\n\nThis issue was fixed in version 0.6.4.","severity":{"version":"4.0","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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00483,"percentile":0.41967,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1333"],"published":"2026-07-22T12:37:13Z","modified":"2026-10-28T02:30:49Z","products":[{"vendor":"open mercato","product":"open mercato"}],"references":[{"url":"https://cert.pl/posts/2026/07/CVE-2026-16270","tags":["third-party-advisory","advisory"]},{"url":"https://www.openmercato.com/","tags":["product","web"]},{"url":"https://github.com/open-mercato/open-mercato/pull/1996","tags":["patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16270","tags":["advisory"]},{"url":"https://www.openmercato.com"},{"url":"https://github.com/advisories/GHSA-gchv-qq48-9rjw"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/16xxx/CVE-2026-16270.json","tags":["advisory"]},{"url":"https://github.com/open-mercato/open-mercato","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-16270","title":"ReDoS in Open Mercato","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.\n\n\nThis issue was fixed in version 0.6.4.","status":"published","published":"2026-07-22T12:37:13.205Z","modified":"2026-07-22T18:55:41.693Z","cvss":[{"version":"4.0","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","level":"medium","assessor":"cna"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:20:11.24076Z"}],"euvd":[{"id":"EUVD-2026-47649","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.\n\n\nThis issue was fixed in version 0.6.4.","status":"published","published":"2026-07-22T12:37:13Z","modified":"2026-07-22T18:55:41Z","cvss":[{"version":"4.0","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","level":"medium"}],"updated_at":"2026-11-02T18:19:44.868793Z"}],"ghsa":[{"id":"GHSA-gchv-qq48-9rjw","title":"Open Mercato does not validate regex rules. An attacker with privileges to create the regex rule...","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.\n\n\nThis issue was fixed in version 0.6.4.","status":"published","published":"2026-07-22T15:31:20Z","modified":"2026-07-22T15:31:20Z","cvss":[{"version":"4.0","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/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","level":"medium"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T15:09:38.678188Z"}],"nvd":[{"id":"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.\n\n\nThis issue was fixed in version 0.6.4.","status":"published","published":"2026-07-22T13:16:36.99Z","modified":"2026-07-22T20:54:47.023Z","cvss":[{"version":"4.0","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/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","level":"medium","assessor":"secondary"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:12:32.089897Z"}],"osv":[{"id":"CVE-2026-16270","title":"ReDoS in Open Mercato","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.\n\n\nThis issue was fixed in version 0.6.4.","status":"published","published":"2026-07-22T12:37:13.205Z","modified":"2026-10-28T02:30:49.982007211Z","cvss":[{"version":"4.0","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","level":"medium"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T15:44:57.682091Z"}]}}