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PyPI package

matrix-nio

Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. High, CVSS 8.6PyPIAmendedPublished

    When matrix-nio receives forwarded room keys, the receiver doesn't check if it requested the key from the forwarder

    CVE-2022-39254 · GHSA-w4pr-4vjg-hffh

    Affected
    • PyPI matrix-nio < 0.20
    Fixed in
    0.20· Vendor fix available
    Issue
    When matrix-nio before 0.20 requests a room key from our devices, it correctly accepts key forwards only if they are a response to a previous request. However, it doesn't check that the device that responded matches the device the key was requested from. This allows a malicious homeserver to insert room keys of questionable validity into the key store in some situations, potentially assisting in an impersonation attack. For more information If you have any questions or comments about this advisory, e-mail us at poljar@termina.org.uk.

    Recommended action: Upgrade to 0.20 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →