{"id":"CVE-2026-86469","title":"A flaw was found in GLib2","summary":"A flaw was found in GLib2. When g_file_replace() is used with G_FILE_CREATE_REPLACE_DESTINATION and creating the .goutputstream-XXXXXX temporary file fails, the library unlinks the destination and recreates it without exclusive creation …","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L","cwe":["CWE-59"],"vendor":"Red Hat","product":"glib2","affected":["glib2 (all versions)","mingw-glib2 (all versions)","glib2 (all versions)","glib2 (all versions)","glib2 (all versions)","mingw-glib2 (all versions)","glib2 (all versions)","mingw-glib2 (all versions)","glib2 (all versions)","openshift/ose-rhel-coreos-8 (all versions)","openshift/ose-rhel-coreos-9 (all versions)"],"published":"2026-09-07","updated":"2026-09-08","sourceUpdated":"2026-09-08T19:08:15.590","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-86469","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-86469","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2473839","label":"secalert@redhat.com"},{"url":"https://gitlab.gnome.org/GNOME/glib/-/blob/main/gio/glocalfileoutputstream.c","label":"secalert@redhat.com"},{"url":"https://gitlab.gnome.org/GNOME/glib/-/work_items/4044","label":"secalert@redhat.com"},{"url":"https://gitlab.gnome.org/GNOME/glib/-/work_items/4044","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-86469.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-86469"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86469"}],"tags":["nvd","cve.org","exploit-available","csaf","vex","red-hat"],"epss":0.00113,"epssPercentile":0.01642,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-08T12:46:10.415291Z"},"ingestedAt":"2026-09-08T15:33:26.979Z","slug":"CVE-2026-86469","body":"## Overview\n\nA flaw was found in GLib2. When g_file_replace() is used with G_FILE_CREATE_REPLACE_DESTINATION and creating the .goutputstream-XXXXXX temporary file fails, the library unlinks the destination and recreates it without exclusive creation or symlink protection. A local attacker who can write to the destination directory can win that race and redirect the write to another file.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Hardened Images, … · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-09-08 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-86469.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[]}