{"id":"CVE-2026-55094","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-55094","generatedAt":"2026-10-28T04:35:31.765Z","title":"Taskcluster is the task execution framework that supports Mozilla's continuous integration and release processes.","description":"Taskcluster is the task execution framework that supports Mozilla's continuous integration and release processes. Prior to version 100.3.0, Taskcluster is vulnerable to unauthenticated RCE on Taskcluster deployments with an anonymous role that exposes the GraphQL endpoint and parses filter arguments using the sift library. This issue has been patched in version 100.3.0.","published":"2026-09-30T18:18:37.000Z","lastModified":"2026-09-30T20:17:33.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/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-20","CWE-94","CWE-95","CWE-250","CWE-306"],"affected":[],"epss":{"score":0.00423,"percentile":0.36418,"date":"2026-10-27","history":[{"date":"2026-10-01","score":0.00681,"percentile":0.50673}]},"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 (0.42%). 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":"2026-09-30T18:18:37.000Z","detail":{"score":"8.7","severity":"HIGH","publishedAt":"2026-09-30T18:18:37.387Z"},"summary":"New CVE, high severity (CVSS 8.7)."}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2045091","source":"security-advisories@github.com"},{"url":"https://github.com/taskcluster/taskcluster/commit/a1b0154b8235937657c2ded127f193b564e2334b","source":"security-advisories@github.com"},{"url":"https://github.com/taskcluster/taskcluster/issues/8716","source":"security-advisories@github.com"},{"url":"https://github.com/taskcluster/taskcluster/pull/8718","source":"security-advisories@github.com"},{"url":"https://github.com/taskcluster/taskcluster/releases/tag/v100.3.0","source":"security-advisories@github.com"},{"url":"https://github.com/taskcluster/taskcluster/security/advisories/GHSA-ccv5-c45x-2q38","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-55094","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."}