UBUNTU-CVE-2026-120971

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    UBUNTU-CVE-2026-120971

    Published: 3 Nov 2026Last Modified: 5 Nov 2026
    Upstream:
    CVE-2026-120971

    Summary:

    Details: A flaw was found in RESTEasy's default exception mapper. When an unhandled exception other than a WebApplicationException is not handled by an application exception mapper, RESTEasy returns the exception's localized message in the HTTP 500 response body. A remote unauthenticated attacker who can trigger such an exception may obtain information contained in that message. The behavior was reproduced with RESTEasy 7.0.2.Final.

    References: https://ubuntu.com/security/CVE-2026-120971, https://www.cve.org/CVERecord?id=CVE-2026-120971, https://access.redhat.com/security/cve/CVE-2026-120971, https://bugzilla.redhat.com/show_bug.cgi?id=2565584

    Affected packages

    Package

    Name: resteasy

    Purl: pkg:deb/ubuntu/resteasy?arch=source&distro=esm-apps%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    3.0.6-3
    3.0.6-3ubuntu0.1~esm1

    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
    UBUNTU-CVE-2026-120971 | CVE-DB