{"id":"CVE-2026-83803","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-83803","generatedAt":"2026-10-28T01:19:47.357Z","title":"From 23.11.0 until 26.7.0, Sentry instances with the relocation feature enabled unsafely deserialize a legacy database field while importing a user-supplied relocation archive.","description":"Sentry is an error tracking and performance monitoring tool. From 23.11.0 until 26.7.0, Sentry instances with the relocation feature enabled unsafely deserialize a legacy database field while importing a user-supplied relocation archive. An authenticated user can craft an archive that causes arbitrary code execution in the import worker process. Self-hosted installations using the default configuration are not affected because the relocation feature is disabled by default. This issue is fixed in version 26.7.0.","published":"2026-09-22T17:17:27.000Z","lastModified":"2026-09-24T21:22:20.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":7.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/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/M"},"cwe":["CWE-502"],"affected":[],"epss":{"score":0.00605,"percentile":0.48676,"date":"2026-10-26","history":[{"date":"2026-09-23","score":0.00605,"percentile":0.47676}]},"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 (0.60%). 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":"2026-09-22T17:17:27.000Z","detail":{"score":"7.7","severity":"HIGH","publishedAt":"2026-09-22T17:17:26.710Z"},"summary":"New CVE, high severity (CVSS 7.7)."}],"references":[{"url":"https://github.com/getsentry/sentry/commit/d7fd44193c282102f9fcd2c73973820f3d10ac3a","source":"security-advisories@github.com"},{"url":"https://github.com/getsentry/sentry/pull/119622","source":"security-advisories@github.com"},{"url":"https://github.com/getsentry/sentry/releases/tag/26.7.0","source":"security-advisories@github.com"},{"url":"https://github.com/getsentry/sentry/security/advisories/GHSA-xm86-7c47-gjm4","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-83803","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."}