{"id":"CVE-2026-55429","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-55429","generatedAt":"2026-10-28T03:27:00.239Z","title":"Coder allows organizations to provision remote development environments via Terraform.","description":"Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, `UpsertWorkspaceApp` overwrites an existing app's `agent_id` on a primary-key conflict and `insertAgentApp` accepts the app ID from the provisioner's `CompleteJob` payload without verifying it belongs to the workspace being built. `CompleteJob` runs under `dbauthz.AsProvisionerd` so the authorization layer does not block the cross-workspace upsert. Exploitation requires elevated access as a template author or external provisioner operator. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 verifies that any existing `workspace_apps` row matching the supplied ID belongs to the workspace being built and rejects cross-workspace agent reassignment. No known workarounds are available.","published":"2026-07-08T00:16:34.000Z","lastModified":"2026-07-08T19:43:32.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":8.7,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N"},"cwe":["CWE-639"],"affected":["coder/coder"],"epss":{"score":0.00508,"percentile":0.43101,"date":"2026-10-26","history":[]},"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 (0.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/coder/coder/pull/26103","tags":["Issue Tracking","Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/coder/coder/releases/tag/v2.29.17","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/coder/coder/releases/tag/v2.32.7","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/coder/coder/releases/tag/v2.33.8","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/coder/coder/releases/tag/v2.34.2","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/coder/coder/security/advisories/GHSA-9rjw-3gwp-f59v","tags":["Patch","Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-55429","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."}