CVSS: 5.9EPSS: 0%CPEs: 7EXPL: 0CVE-2026-0990 – Libxml2: libxml2: denial of service via uncontrolled recursion in xml catalog processing
https://notcve.org/view.php?id=CVE-2026-0990
15 Jan 2026 — 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. It was d... • https://access.redhat.com/security/cve/CVE-2026-0990 • CWE-674: Uncontrolled Recursion •
CVSS: 3.7EPSS: 0%CPEs: 4EXPL: 0CVE-2026-0976 – Org.keycloak/keycloak-quarkus-server: keycloak: proxy bypass due to improper handling of matrix parameters in url paths
https://notcve.org/view.php?id=CVE-2026-0976
15 Jan 2026 — A flaw was found in Keycloak. This improper input validation vulnerability occurs because Keycloak accepts RFC-compliant matrix parameters in URL path segments, while common reverse proxy configurations may ignore or mishandle them. A remote attacker can craft requests to mask path segments, potentially bypassing proxy-level path filtering. This could expose administrative or sensitive endpoints that operators believe are not externally reachable. • https://access.redhat.com/security/cve/CVE-2026-0976 • CWE-20: Improper Input Validation •
CVSS: 4.8EPSS: 0%CPEs: 5EXPL: 0CVE-2026-0716 – Libsoup: out-of-bounds read in libsoup websocket frame processing
https://notcve.org/view.php?id=CVE-2026-0716
13 Jan 2026 — A flaw was found in libsoup’s WebSocket frame processing when handling incoming messages. If a non-default configuration is used where the maximum incoming payload size is unset, the library may read memory outside the intended bounds. This can cause unintended memory exposure or a crash. Applications using libsoup’s WebSocket support with this configuration may be impacted. This update for libsoup fixes the following issues. • https://access.redhat.com/security/cve/CVE-2026-0716 • CWE-805: Buffer Access with Incorrect Length Value •
CVSS: 8.1EPSS: 0%CPEs: 10EXPL: 0CVE-2026-0891 – Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147
https://notcve.org/view.php?id=CVE-2026-0891
13 Jan 2026 — Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that wi... • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1964722%2C2000981%2C2003100%2C2003278 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 6.5EPSS: 0%CPEs: 10EXPL: 0CVE-2026-0890 – Spoofing issue in the DOM: Copy & Paste and Drag & Drop component
https://notcve.org/view.php?id=CVE-2026-0890
13 Jan 2026 — Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape, information disclosure or spoofing. • https://bugzilla.mozilla.org/show_bug.cgi?id=2005081 • CWE-290: Authentication Bypass by Spoofing •
CVSS: 5.3EPSS: 0%CPEs: 10EXPL: 0CVE-2026-0887 – Clickjacking issue, information disclosure in the PDF Viewer component
https://notcve.org/view.php?id=CVE-2026-0887
13 Jan 2026 — Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape, information disclosure or spoofing. • https://bugzilla.mozilla.org/show_bug.cgi?id=2006500 • CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere •
CVSS: 5.3EPSS: 0%CPEs: 10EXPL: 0CVE-2026-0886 – Incorrect boundary conditions in the Graphics component
https://notcve.org/view.php?id=CVE-2026-0886
13 Jan 2026 — Incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, and Firefox ESR < 140.7. Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape, information disclosure or... • https://bugzilla.mozilla.org/show_bug.cgi?id=2005658 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-501: Trust Boundary Violation •
CVSS: 6.5EPSS: 0%CPEs: 10EXPL: 0CVE-2026-0885 – Use-after-free in the JavaScript: GC component
https://notcve.org/view.php?id=CVE-2026-0885
13 Jan 2026 — Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape, information disclosure or spoofing. • https://bugzilla.mozilla.org/show_bug.cgi?id=2003607 • CWE-416: Use After Free •
CVSS: 10.0EPSS: 0%CPEs: 10EXPL: 0CVE-2026-0884 – Use-after-free in the JavaScript Engine component
https://notcve.org/view.php?id=CVE-2026-0884
13 Jan 2026 — Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape, information disclosure or spoofing. • https://bugzilla.mozilla.org/show_bug.cgi?id=2003588 • CWE-416: Use After Free •
CVSS: 5.3EPSS: 0%CPEs: 10EXPL: 0CVE-2026-0883 – Information disclosure in the Networking component
https://notcve.org/view.php?id=CVE-2026-0883
13 Jan 2026 — Information disclosure in the Networking component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. Information disclosure in the Networking component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape, information disclosure or spoofing. • https://bugzilla.mozilla.org/show_bug.cgi?id=1989340 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •