Authenticated terminal impersonation via session query injection
Published Jul 9, 2026 · Updated Jul 9, 2026
Authentication bypass in Open WebUI before 0.10.0 allows remote authenticated users to enter another user's live terminal session. The ws_terminal route concatenates an unencoded session_id into the upstream URL before appending user_id, so injected query delimiters make the coordinator bind an attacker-chosen identity. Exploitation requires a normal account, a coordinator-backed terminal server, and a known active session ID, such as one exposed through a shared chat.
Summary
What happened
Authentication bypass in Open WebUI before 0.10.0 allows remote authenticated users to enter another user's live terminal session. The ws_terminal route concatenates an unencoded session_id into the upstream URL before appending user_id, so injected query delimiters make the coordinator bind an attacker-chosen identity. Exploitation requires a normal account, a coordinator-backed terminal server, and a known active session ID, such as one exposed through a shared chat.
The record
- CVE
- CVE-2026-59224
- Published
- Jul 9, 2026
- Updated
- Jul 9, 2026
- Vendor
- Open WebUI
- Product
- Open WebUI
- Classifications
- CWE-290, CWE-287, T1550
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 9, 2026CVE publishedPublication date reported by the CVE source.
- Jul 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=< 0.10.0
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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