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    1 vulnerability by pop-os

    CVE-2026-25704 (GCVE-0-2026-25704)

    Vulnerability from cvelistv5 – Published: 2026-03-30 07:44 – Updated: 2026-04-16 16:32
    VLAI
    Title
    Incomplete privilege drop for com.system76.CosmicGreeter.GetUserData
    Summary
    A Privilege Dropping / Lowering Errors/Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in  cosmic-greeter can allow an attacker to regain privileges that should have been dropped and abuse them in the racy checking logic. This issue affects cosmic-greeter before https://github.Com/pop-os/cosmic-greeter/pull/426.
    Severity
    5.8 (Medium)
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-271 - Privilege Dropping / Lowering Errors
    • CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
    Assigner
    References
    Impacted products
    Vendor Product Version
    pop-os cosmic-greeter Affected: ? , < https://github.com/pop-os/cosmic-greeter/pull/426 (git)
    		Create a notification for this product.
    Date Public
    2026-03-11 11:25
    Credits
    Matthias Gerstner of SUSE
    Show details on NVD website
    To clipboard 

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