{"id":"CVE-2026-102876","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-102876","generatedAt":"2026-10-28T02:59:16.520Z","title":"SurrealDB before 3.3.0 contains an authorization bypass in HTTP session construction where check_auth() verifies credentials against Surreal-Auth-NS and Surreal-Auth-DB headers but constructs sessions using Surreal-NS and Surreal-DB headers without…","description":"SurrealDB before 3.3.0 contains an authorization bypass in HTTP session construction where check_auth() verifies credentials against Surreal-Auth-NS and Surreal-Auth-DB headers but constructs sessions using Surreal-NS and Surreal-DB headers without validating access permissions. Attackers can authenticate as a user from one tenant while selecting another tenant's namespace and database to read, create, and modify records across tenant boundaries.","published":"2026-09-29T20:17:18.000Z","lastModified":"2026-10-02T13:17:31.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":8.6,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/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/M"},"cwe":["CWE-639"],"affected":[],"epss":{"score":0.0027,"percentile":0.19071,"date":"2026-10-26","history":[{"date":"2026-09-30","score":0.0027,"percentile":0.17374}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-29T20:17:18.000Z","detail":{"score":"8.6","severity":"HIGH","publishedAt":"2026-09-29T20:17:18.230Z"},"summary":"New CVE, high severity (CVSS 8.6)."}],"references":[{"url":"https://github.com/surrealdb/surrealdb","source":"disclosure@vulncheck.com"},{"url":"https://github.com/surrealdb/surrealdb/blob/v3.2.4/surrealdb/server/src/ntw/auth.rs","source":"disclosure@vulncheck.com"},{"url":"https://github.com/surrealdb/surrealdb/commit/5000e233b4a8b96689c82715c172061dcf711d31","source":"disclosure@vulncheck.com"},{"url":"https://github.com/surrealdb/surrealdb/releases/tag/v3.3.0","source":"disclosure@vulncheck.com"},{"url":"https://github.com/surrealdb/surrealdb/security/advisories/GHSA-vx2p-7hhm-wv62","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/surrealdb-before-3.3.0-cross-tenant-access-via-headers","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-102876","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}