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Maven package

org.geysermc:connector

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.

Open advisories

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 Withdrawn advisories and news are excluded.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

  1. High, CVSS 7.4MavenPublished

    User impersonation due to incorrect handling of the login JWT

    CVE-2021-39177 · GHSA-h77f-xxx7-4858

    Affected
    • Maven org.geysermc:connector < 1.4.2-SNAPSHOT
    Fixed in
    1.4.2-SNAPSHOT· Vendor fix available
    Issue
    Impact <!--What kind of vulnerability is it? Who is impacted?-- This allows anyone that can connect to the server to forge a LoginPacket with manipulated JWT token allowing impersonation as any Bedrock user. Unless credentials are saved in your configuration, online mode is not affected as users are still required to log in separately. If your credentials are saved, there is no risk of exposing your email or password. Patches <!--Has the problem been patched? What versions should users upgrade to?-- This was patched as part of https://github.com/GeyserMC/Geyser/commit/b9541505af68ac7b7c093206ac7b1ba88957a5a6 and https://github.com/GeyserMC/Geyser/commit/ab2f5b326fe590e09167e8b45b4b165ac06ecd13. if your Geyser version is 1.4.2-SNAPSHOT or later, the issue has been addressed on your build. Workarounds <!--Is there a way for users to fix or remediate the vulnerability without upgrading?-- Geyser strongly recommends updating to fix this issue. If this isn't possible: - Use online mode…

    Recommended action: Upgrade to 1.4.2-SNAPSHOT (pre-release) or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →