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    CVE-2026-22218

    Chainlit versions prior to 2.9.4 contain an arbitrary file read vulnerability in the /project/element update flow. An authenticated client can send a custom Element with a user-controlled path value, causing the server to copy the referenced file into the attacker’s session. The resulting element identifier (chainlitKey) can then be used to retrieve the file contents via /project/file/<chainlitKey>, allowing disclosure of any file readable by the Chainlit service.

    Published:Jan 19, 2026
    Last Modified:Apr 16, 2026
    EPS:Jan 19, 2026
    EPSS Score:0.0004
    CVSS Score:6.5

    Affected Products

    Vendor
    Chainlit
    Product
    Chainlit

    Exploits

    https://www.zafran.io/resources/chainleak-critical-ai-framework-vulnerabilities-expose-data-enable-cloud-takeover

    Related CVEs

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    CVE-2026-56104 (CVSS 8.8) — Chainlit before 2.10.1 contains a session hijacking vulnerability that allows unauthenticated attackers to res…
    CVE-2026-22219 (CVSS 8.3) — Chainlit versions prior to 2.9.4 contain a server-side request forgery (SSRF) vulnerability in the /project/el…
    CVE-2025-68492 (CVSS 2.3) — Chainlit versions prior to 2.8.5 contain an authorization bypass through user-controlled key vulnerability. If…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High