{"id":"CVE-2026-88858","aliases":[],"title":"Server-side expression parser denial of service","titleSource":"GRAFANA","descriptionSource":"GRAFANA","products":[{"vendor":"Grafana","name":"Grafana OSS","platforms":[],"versions":[{"version":"7.4.0","status":"affected","lessThanOrEqual":"11.6.16","versionType":"semver"},{"version":"12.0.0","status":"affected","lessThanOrEqual":"12.2.10","versionType":"semver"},{"version":"12.3.0","status":"affected","lessThanOrEqual":"12.3.11","versionType":"semver"},{"version":"12.4.0","status":"affected","lessThanOrEqual":"12.4.13","versionType":"semver"},{"version":"13.0.0","status":"affected","lessThanOrEqual":"13.0.11","versionType":"semver"},{"version":"13.1.0","status":"affected","lessThanOrEqual":"13.1.8","versionType":"semver"},{"version":"13.2.0","status":"affected","lessThanOrEqual":"13.2.4","versionType":"semver"}],"defaultStatus":"unaffected","source":"GRAFANA","url":"https://www.cve.org/CVERecord?id=CVE-2026-88858"},{"vendor":"Grafana","name":"Grafana Enterprise","platforms":[],"versions":[{"version":"7.4.0","status":"affected","lessThanOrEqual":"11.6.16","versionType":"semver"},{"version":"12.0.0","status":"affected","lessThanOrEqual":"12.2.10","versionType":"semver"},{"version":"12.3.0","status":"affected","lessThanOrEqual":"12.3.11","versionType":"semver"},{"version":"12.4.0","status":"affected","lessThanOrEqual":"12.4.13","versionType":"semver"},{"version":"13.0.0","status":"affected","lessThanOrEqual":"13.0.11","versionType":"semver"},{"version":"13.1.0","status":"affected","lessThanOrEqual":"13.1.8","versionType":"semver"},{"version":"13.2.0","status":"affected","lessThanOrEqual":"13.2.4","versionType":"semver"}],"defaultStatus":"unaffected","source":"GRAFANA","url":"https://www.cve.org/CVERecord?id=CVE-2026-88858"}],"remediation":[],"description":"A user with the Viewer role in Grafana can crash the server by submitting a crafted server-side math expression (uncontrolled recursion). A user with permission to provision alert rules can make the outage persist across restarts.","severity":"medium","score":6.5,"published":"2026-10-28T16:50:17.291Z","modified":"2026-10-28T16:50:17.291Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://grafana.com/security/security-advisories/cve-2026-88858"],"sources":[{"name":"CVE","id":"CVE-2026-88858","modified":"2026-10-28T16:50:17.291Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-88858"}],"assessments":[{"source":"GRAFANA","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-29T02:20:33.012Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}