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    2 vulnerabilities found for matrix-sdk-ui by matrix-org

    CVE-2026-45057 (GCVE-0-2026-45057)

    Vulnerability from nvd – Published: 2026-09-11 21:12 – Updated: 2026-09-14 16:18
    VLAI
    Title
    matrix-sdk-ui: Incomplete edit validation
    Summary
    matrix-sdk-ui provides GUI-centric utilities on top of matrix-rust-sdk. The message edit validation logic in the `matrix-sdk-ui` crate prior to 0.17.0 is missing a check: when replacing an encrypted event, the replacement event itself is not required to be encrypted. This enables a malicious homeserver administrators (or actors with equivalent power) to impersonate or spoof messages as if they were sent by a victim user. `matrix-sdk-ui` 0.17.0 fixes the message edit validation logic to align with the algorithm for replacement events[^1] described in the Matrix specification. No known workarounds are available.
    Severity
    4.9 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-14 16:16 UTC
    CWE
    • CWE-345 - Insufficient Verification of Data Authenticity
    Assigner
    References
    Impacted products
    Vendor Product Version
    matrix-org matrix-sdk-ui Affected: < 0.16.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-45057 (GCVE-0-2026-45057)

    Vulnerability from cvelistv5 – Published: 2026-09-11 21:12 – Updated: 2026-09-14 16:18
    VLAI
    Title
    matrix-sdk-ui: Incomplete edit validation
    Summary
    matrix-sdk-ui provides GUI-centric utilities on top of matrix-rust-sdk. The message edit validation logic in the `matrix-sdk-ui` crate prior to 0.17.0 is missing a check: when replacing an encrypted event, the replacement event itself is not required to be encrypted. This enables a malicious homeserver administrators (or actors with equivalent power) to impersonate or spoof messages as if they were sent by a victim user. `matrix-sdk-ui` 0.17.0 fixes the message edit validation logic to align with the algorithm for replacement events[^1] described in the Matrix specification. No known workarounds are available.
    Severity
    4.9 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-14 16:16 UTC
    CWE
    • CWE-345 - Insufficient Verification of Data Authenticity
    Assigner
    References
    Impacted products
    Vendor Product Version
    matrix-org matrix-sdk-ui Affected: < 0.16.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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