{"id":"CVE-2026-91381","title":"openjdk: Enhance Font Rendering (Oracle CPU 2026-10) (CVE-2026-91381)","summary":"A flaw was found in OpenJDK. This vulnerability allows an unauthenticated remote attacker to cause unauthorized data modification or deletion by submitting untrusted input to APIs in the 2D graphics component. Exploitation can occur throug…","severity":"low","cvss":3.7,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","cvssSource":"vendor","cwe":"CWE-749","vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","affected":["build_of_openjdk 1.8","enterprise_linux 6","enterprise_linux 7","enterprise_linux 8","enterprise_linux 9"],"published":"2026-10-20","updated":"2026-10-22","sourceUpdated":"2026-10-22T22:00:59+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91381.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91381.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-91381"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2557153"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-91381"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91381"},{"url":"https://www.oracle.com/security-alerts/cpuoct2026.html"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00232,"epssPercentile":0.14021,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-21T15:08:36.414766Z"},"ingestedAt":"2026-10-20T22:23:33.781Z","slug":"CVE-2026-91381","body":"## Overview\n\nA flaw was found in OpenJDK. This vulnerability allows an unauthenticated remote attacker to cause unauthorized data modification or deletion by submitting untrusted input to APIs in the 2D graphics component. Exploitation can occur through network services that pass data to these APIs or in client environments executing untrusted code within a sandbox.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat build of OpenJDK 1.8, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat build of OpenJDK 1.8, Red Hat Enterprise Linux 8, … · updated 2026-10-22 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91381.json)\n\n**openjdk: Enhance Font Rendering (Oracle CPU 2026-10)** — rated Low by Red Hat. Released 2026-10-20, updated 2026-10-22.\n\nAffected:\n\n- Red Hat build of OpenJDK 1.8\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 7\n- Red Hat Enterprise Linux 8\n- Red Hat Enterprise Linux 9\n\nNo fix planned:\n\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 7\n- Red Hat build of OpenJDK 1.8\n- Red Hat Enterprise Linux 8\n- Red Hat Enterprise Linux 9\n\nNot affected:\n\n- Red Hat build of OpenJDK 11 ELS\n- Red Hat build of OpenJDK 17\n- Red Hat build of OpenJDK 21\n- Red Hat build of OpenJDK 25\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 8\n- Red Hat Enterprise Linux 9\n- Red Hat Hardened Images\n\n## Remediation\n\nOut of support scope","depth":"sunlit","depthScore":20,"depthScoreParts":{"impact":20.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}