Cross-workspace compromise via unexpired prebuild token
Published Sep 6, 2025 · Updated Sep 8, 2025
Privilege escalation in Coder 2.22.0 through 2.24.3 and 2.25.0 through 2.25.1 allows remote authenticated users to compromise workspaces. During a prebuilt-workspace claim, the session-token regeneration path creates a token for the claimant but fails to expire the token previously issued to the prebuilds system user. Exploitation requires an authenticated user to claim a prebuilt workspace whose template persisted that earlier token, which grants member-level access to other prebuilt workspaces and permits code execution or data access there.
Summary
What happened
Privilege escalation in Coder 2.22.0 through 2.24.3 and 2.25.0 through 2.25.1 allows remote authenticated users to compromise workspaces. During a prebuilt-workspace claim, the session-token regeneration path creates a token for the claimant but fails to expire the token previously issued to the prebuilds system user. Exploitation requires an authenticated user to claim a prebuilt workspace whose template persisted that earlier token, which grants member-level access to other prebuilt workspaces and permits code execution or data access there.
The record
- CVE
- CVE-2025-58437
- Published
- Sep 6, 2025
- Updated
- Sep 8, 2025
- Vendor
- Coder
- Product
- Coder
- Classifications
- CWE-277, T1078
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 6, 2025CVE publishedPublication date reported by the CVE source.
- Sep 8, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=>= 2.22.0, < 2.24.4
- Affected versionversion=>= 2.25.0, < 2.25.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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