{"id":"CVE-2025-66411","aliases":["GHSA-jf75-p25m-pw74","GO-2025-4182"],"url":"https://o3.security/vulnerability/CVE-2025-66411","summary":"Coder logged sensitive objects unsanitized","details":"## Summary\nWorkspace Agent manifests containing sensitive values were logged in plaintext unsanitized\n\n## Details\nBy default Workspace Agent logs are redirected to [stderr](https://linux.die.net/man/3/stderr)\nhttps://github.com/coder/coder/blob/a8862be546f347c59201e2219d917e28121c0edb/cli/agent.go#L432-L439\n\n[Workspace Agent Manifests](https://coder.com/docs/reference/agent-api/schemas#agentsdkmanifest) containing sensitive environment variables were logged insecurely\nhttps://github.com/coder/coder/blob/7beb95fd56d2f790502e236b64906f8eefb969bd/agent/agent.go#L1090\n\nAn attacker with limited local access to the Coder Workspace (VM, K8s Pod etc.) or a third-party system ([SIEM](https://csrc.nist.gov/glossary/term/security_information_and_event_management_tool), logging stack) could access those logs\n\nThis behavior opened room for unauthorized access and privilege escalation\n\n## Impact\nImpact varies depending on the environment variables set in a given workspace\n\n## Patches\n[Fix](https://github.com/coder/coder/commit/e2a46393fce40bc630df3293c1ee66a596277289) was released & backported:\n- https://github.com/coder/coder/releases/tag/v2.28.4\n- https://github.com/coder/coder/releases/tag/v2.27.7\n- https://github.com/coder/coder/releases/tag/v2.26.5\n\n## Workarounds\nOne potential workaround is to disable Workspace Agent Logs by setting following configuration option\n`CODER_AGENT_LOGGING_HUMAN=/dev/null` \n> platform operators are advised to upgrade their deployments","published":"2025-12-03T19:25:24.207Z","modified":"2026-10-28T02:30:49.447248481Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/coder/coder/v2","fixedVersion":"2.26.5"},{"ecosystem":"Go","name":"github.com/coder/coder/v2","fixedVersion":"2.27.7"},{"ecosystem":"Go","name":"github.com/coder/coder/v2","fixedVersion":"2.28.4"}],"fix":{"url":"https://github.com/coder/coder/commit/e2a46393fce40bc630df3293c1ee66a596277289","label":"coder/coder@e2a4639"},"references":[{"type":"WEB","url":"https://github.com/coder/coder/releases/tag/v2.26.5"},{"type":"WEB","url":"https://github.com/coder/coder/releases/tag/v2.27.7"},{"type":"WEB","url":"https://github.com/coder/coder/releases/tag/v2.28.4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66411.json"},{"type":"ADVISORY","url":"https://github.com/coder/coder/security/advisories/GHSA-jf75-p25m-pw74"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66411"},{"type":"FIX","url":"https://github.com/coder/coder/commit/e2a46393fce40bc630df3293c1ee66a596277289"},{"type":"WEB","url":"https://github.com/coder/coder/pull/20968"},{"type":"WEB","url":"https://github.com/coder/coder/commit/06c6abbe0935f9213c1588add60a396da5762e1c"},{"type":"WEB","url":"https://github.com/coder/coder/commit/a75205a559211c8aa494b1a16750d114b263f24a"},{"type":"PACKAGE","url":"https://github.com/coder/coder"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:49.447248481Z"}}