Authenticated SSRF via unsanitized element URL
Published Jan 19, 2026 · Updated Jan 19, 2026
SSRF in Chainlit before 2.9.4 allows remote authenticated users to make server-side HTTP requests through element updates. The /project/element handler accepts an Element url and passes it to SQLAlchemy element creation, which performs an outbound HTTP GET without destination validation. Exploitation requires the SQLAlchemy data layer and an authenticated session, enabling reads from internal services or cloud metadata and storage of returned content.
Summary
What happened
SSRF in Chainlit before 2.9.4 allows remote authenticated users to make server-side HTTP requests through element updates. The /project/element handler accepts an Element url and passes it to SQLAlchemy element creation, which performs an outbound HTTP GET without destination validation. Exploitation requires the SQLAlchemy data layer and an authenticated session, enabling reads from internal services or cloud metadata and storage of returned content.
The record
- CVE
- CVE-2026-22219
- Published
- Jan 19, 2026
- Updated
- Jan 19, 2026
- Vendor
- Chainlit
- Product
- Chainlit
- Classifications
- CWE-918, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 19, 2026CVE publishedPublication date reported by the CVE source.
- Jan 19, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <2.9.4
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- Chainlit SSRF demonstrationproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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