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ALPINE-CVE-2026-5773

ALPINE-CVE-2026-5773

This page contains facts from public vulnerability sources. Check the original advisory before updating.

libcurl might in some circumstances reuse the wrong connection for SMB(S) transfers. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of criteria must be met. Due to a logical error in the code, a network transfer operation that was requested by an application could wrongfully reuse an existing SMB connection to the same server that was using a different "share" than the new subsequent transfer should. This could in unlucky situations lead to the download of the wrong file or the upload of a file to the wrong place. When this happens, the same credentials are used and the server name is the same.

CVSS 7.5 · High · Fix available

Published
Updated

Stack: system

Affected products and versions

  • curl Alpine:v3.21

    Affected ranges
    • ECOSYSTEM: ≥ 7.40.0, < 8.14.1-r3

    Update to 8.14.1-r3

  • curl Alpine:v3.22

    Affected ranges
    • ECOSYSTEM: ≥ 7.40.0, < 8.14.1-r4

    Update to 8.14.1-r4

  • curl Alpine:v3.23

    Affected ranges
    • ECOSYSTEM: ≥ 7.40.0, < 8.20.0-r0

    Update to 8.20.0-r0

  • curl Alpine:v3.24

    Affected ranges
    • ECOSYSTEM: ≥ 7.40.0, < 8.20.0-r0

    Update to 8.20.0-r0

Original sources

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