GHSA-p47f-322f-whfh

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    GHSA-p47f-322f-whfh

    Published: 28 May 2026Last Modified: 10 Sept 2026
    Aliases:
    CVE-2026-9828

    Summary: QOS.CH Sarl logback logback-core has a deserialization of untrusted data vulnerability

    Details: Deserialization of untrusted data vulnerability in QOS.CH Sarl logback logback-core (HardenedObjectInputStream (logback-core) modules) allows Object Injection albeit heavily restricted. More precisely, an attacker able to influence serialized data sent to SimpleSocketServer or SimpleSSLSocketServer can instantiate objects from classes in the java.lang and java.util packages that are not explicitly blocked. Although deserialization is heavily restricted by HardenedObjectInputStream and no practical way to achieve remote code execution or significant privilege escalation has been identified, this issue constitutes a bypass of the intended security restrictions. This issue affects logback: through 1.5.32 inclusive.

    References: https://nvd.nist.gov/vuln/detail/CVE-2026-9828, https://github.com/qos-ch/logback, https://logback.qos.ch/news.html#1.5.33

    Affected packages

    Package

    Name: ch.qos.logback:logback-core

    Purl: pkg:maven/ch.qos.logback/logback-core

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.5.33

    Affected versions

    0.2.5

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-p47f-322f-whfh | CVE-DB