{"id":"CVE-2026-126065","published":"2026-11-10T21:19:24.310","lastModified":"2026-11-10T21:19:24.447","description":"OpenObserve is a cloud-native observability platform. Prior to 1.1.0, the shared authentication validator in src/api/common/src/auth/validator.rs accepts an empty or whitespace-only HTTP Basic password for an account whose password_ext value is missing or empty. SSO-provisioned and migration-created users can have this state, allowing an unauthenticated attacker who knows an affected user's email address and organization to authenticate on protected non-ingestion API routes with the victim's role and permissions. A compromised privileged account can expose or modify telemetry, alerts, streams, users, and security configuration. An account with search permission can submit a DataFusion COPY ... TO statement through the search API to create or overwrite attacker-controlled files at service-process-writable locations, creating a conditional escalation to pre-authentication remote code execution. This issue is fixed in version 1.1.0.","cvssScore":9.8,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-287"],"vendors":[],"products":[],"references":[{"url":"https://github.com/openobserve/openobserve/commit/46678ea8daba94c3904286471794f80c5a74ecea","tags":[]},{"url":"https://github.com/openobserve/openobserve/commit/dc5c657002d97e9e29726cefcadec49cae755e1a","tags":[]},{"url":"https://github.com/openobserve/openobserve/pull/15054","tags":[]},{"url":"https://github.com/openobserve/openobserve/releases/tag/v1.1.0","tags":[]},{"url":"https://github.com/openobserve/openobserve/security/advisories/GHSA-7w4v-2c9r-q94v","tags":[]}],"exploitRefs":[{"url":"https://github.com/openobserve/openobserve/commit/46678ea8daba94c3904286471794f80c5a74ecea","tags":[]},{"url":"https://github.com/openobserve/openobserve/commit/dc5c657002d97e9e29726cefcadec49cae755e1a","tags":[]},{"url":"https://github.com/openobserve/openobserve/pull/15054","tags":[]},{"url":"https://github.com/openobserve/openobserve/releases/tag/v1.1.0","tags":[]},{"url":"https://github.com/openobserve/openobserve/security/advisories/GHSA-7w4v-2c9r-q94v","tags":[]}],"hasPoc":true,"ai":{"summary":"OpenObserve prior to v1.1.0 allows authentication bypass via empty or whitespace-only HTTP Basic passwords for users with missing password_ext values, enabling attackers who know a victim's email and organization to impersonate them on non-ingestion API routes. This grants full access to telemetry, alerts, streams, users, and security configurations, and can be escalated to remote code execution via the DataFusion COPY ... TO statement.","exploitability":"Exploitation requires knowledge of a valid user's email address and organization, and is straightforward for unauthenticated attackers targeting SSO-provisioned or migration-created accounts with empty password_ext fields.","blast_radius":"Successful exploitation grants full administrative control over the observability platform, including data exfiltration, configuration tampering, and potential pre-authentication RCE via file creation overwrites.","remediation":"Upgrade to OpenObserve version 1.1.0 or later to patch the authentication validator flaw in src/api/common/src/auth/validator.rs.","detection":"Defenders should monitor for non-ingestion API requests (e.g., /api/*/users, /api/*/alerts, /api/*/streams) authenticated with HTTP Basic credentials where the password field is empty or whitespace-only and the user has a missing or empty password_ext value in the backend; such requests are anomalous and indicate likely exploitation.","tags":["auth-bypass","rce","web","cloud-native","observability"],"model":"garnet-coder","analyzedAt":"2026-11-11T09:52:47.061Z"}}