{"id":"CVE-2026-21729","aliases":["EUVD-2026-44862","GHSA-65p5-8cm9-qcxx","RHSA-2026:72570"],"status":"published","title":"Loki detected_fields query limits results in unbounded memory allocation","description":"Loki queries with large limits can cause large memory allocations which can impact the availability of the service, depending on its deployment strategy.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0046,"percentile":0.40151,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-770"],"published":"2026-07-16T03:12:07Z","modified":"2026-10-24T21:10:00Z","affected":[{"source":"osv","ecosystem":"Red Hat:hummingbird:1","package":"loki3.6","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.6.17-0.3.hum1"}]}],"bundled":5},{"source":"osv","ecosystem":"Red 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its deployment strategy.","status":"published","published":"2026-07-16T04:17:29.26Z","modified":"2026-10-24T21:10:00.13Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:12:30.250437Z"}],"osv":[{"id":"RHSA-2026:72570","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","status":"published","published":"2026-10-02T10:25:03Z","modified":"2026-10-20T10:43:38.726782363Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.928316Z"}]}}