CVE Feed

    Dashboard / CVE / CVE-2026-0990

    CVE-2026-0990

    A flaw was found in libxml2, an XML parsing library. This uncontrolled recursion vulnerability occurs in the xmlCatalogXMLResolveURI function when an XML catalog contains a delegate URI entry that references itself. A remote attacker could exploit this configuration-dependent issue by providing a specially crafted XML catalog, leading to infinite recursion and call stack exhaustion. This ultimately results in a segmentation fault, causing a Denial of Service (DoS) by crashing affected applications.

    Published:Jan 15, 2026
    Last Modified:Apr 22, 2026
    EPS:Jan 15, 2026
    EPSS Score:0.00056
    CVSS Score:5.9

    Affected Products

    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Hummingbird
    Vendor
    Redhat
    Product
    Jboss Core Services
    Vendor
    Redhat
    Product
    Openshift

    Exploits

    https://gitlab.gnome.org/GNOME/libxml2/-/issues/1018

    Common Weakness Enumeration

    CWE-674 Uncontrolled Recursion

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads

    Related CVEs

    CVE-2026-88914 (CVSS 4.4) — A flaw was found in GStreamer's gst-plugins-good isomp4 plugin. When processing a specially crafted MP4 or MOV…
    CVE-2026-84828 (CVSS 6.5) — A flaw was found in PCS (Pacemaker Configuration System). A local attacker with membership in the 'haclient' g…
    CVE-2026-88859 (CVSS 6.3) — A flaw was found in Evolution. A remote attacker can exploit this vulnerability by sending a specially crafted…
    CVE-2026-18147 (CVSS 8.1) — A flaw was found in FreeIPA. An unauthenticated remote attacker could exploit a DOM Cross-Site Scripting (XSS)…
    CVE-2026-87853 (CVSS 7.5) — A flaw was found in SSSD's IdP authentication provider. The eval_access_token_buf() function compares the OIDC…
    CVE-2026-88924 (CVSS 7) — A flaw was found in the admin backend of gvfs. The privileged gvfsd-admin daemon changes the ownership of newl…
    CVE-2026-87876 (CVSS 3) — Two case-insensitive comparisons on request-derived usernames outside the main authorization path in CUPS's sc…
    CVE-2026-87875 (CVSS 4.3) — The cupsUTF32ToUTF8() function in CUPS's cups/transcode.c lacks a source-length bound and can read past the en…
    CVE-2026-87766 (CVSS 8.8) — A flaw was found in bubblewrap. During sandbox setup, creating files or directories under the new root can fol…
    CVE-2026-18090 (CVSS 6.1) — A flaw was found in gdk-pixbuf. This vulnerability allows a remote attacker to cause a heap out-of-bounds read…

    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