CVE-2026-126308
- Source
- https://cve.org/CVERecord?id=CVE-2026-126308
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-126308.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-126308
- Aliases
-
- GHSA-2x8w-q434-f76p
- Published
- 2026-11-13T09:36:20Z
- Modified
- 2026-11-15T02:30:42Z
- Severity
-
- 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N CVSS Calculator
- Summary
- Coder 2.38.0 before 2.38.2 Session Token Leak via Sub-Agent External Apps
- Details
-
The web dashboard in Coder 2.24.0 before 2.29.23, 2.30.0 before 2.34.14, 2.35.0 before 2.36.9, 2.37.0 before 2.37.6, and 2.38.0 before 2.38.2 replaces the $SESSION_TOKEN placeholder in external app URLs with a full-access API key without checking whether the app belongs to a sub-agent. Code running in a workspace can register a disguised sub-agent app with a custom protocol URL, so the owner's click sends their API key to an attacker-chosen destination.
- Database specific
{ "cna_assigner": "VulnCheck", "cwe_ids": [ "CWE-201" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126308.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126308.json
- https://github.com/coder/coder/security/advisories/GHSA-2x8w-q434-f76p
- https://nvd.nist.gov/vuln/detail/CVE-2026-126308
- https://www.vulncheck.com/advisories/coder-2.38.0-before-2.38.2-session-token-leak-via-sub-agent-external-apps
Affected packages
Git / github.com/coder/coder
Affected ranges
- Type
- GIT
- Repo
- https://github.com/coder/coder
- Events
-
IntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "2.38.0" }, { "fixed": "2.38.2" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "range": [ { "introduced": "2.37.0" }, { "fixed": "2.37.6" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "range": [ { "introduced": "2.36.0" }, { "fixed": "2.36.9" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "range": [ { "introduced": "2.30.0" }, { "fixed": "2.34.14" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "range": [ { "introduced": "2.24.0" }, { "fixed": "2.29.23" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "range": [ { "introduced": "2.35.0" }, { "fixed": "2.36.0" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" } ] }