{"id":"CVE-2026-86469","aliases":["AZL-99993","DEBIAN-CVE-2026-86469","EUVD-2026-72488","GHSA-847x-vxjh-whpv","UBUNTU-CVE-2026-86469"],"status":"published","title":"Glib2: toctou symlink race in `g_file_create_replace_destination` fallback path","description":"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 or symlink protection. A local attacker who can write to the destination directory can win that race and redirect the write to another file.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00141,"percentile":0.03479,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-59"],"published":"2026-09-07T16:00:13Z","modified":"2026-11-06T07:45:42Z","affected":[{"source":"osv","ecosystem":"Azure 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hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 6"},{"vendor":"red hat","product":"red hat enterprise linux 7"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"},{"vendor":"red hat","product":"red hat hardened images"},{"vendor":"red hat","product":"red hat openshift ai (rhoai)"},{"vendor":"red hat","product":"red hat openshift container platform 4"},{"vendor":"red hat","product":"red hat openshift container platform 5"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-86469","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2473839","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://gitlab.gnome.org/GNOME/glib/-/blob/main/gio/glocalfileoutputstream.c"},{"url":"https://gitlab.gnome.org/GNOME/glib/-/work_items/4044","tags":["exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86469","tags":["web"]},{"url":"https://github.com/advisories/GHSA-847x-vxjh-whpv"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-86469","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-86469","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-86469","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-86469","title":"Glib2: toctou symlink race in `g_file_create_replace_destination` fallback path","description":"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 or symlink protection. A local attacker who can write to the destination directory can win that race and redirect the write to another file.","status":"published","published":"2026-09-07T16:00:13.925Z","modified":"2026-11-06T07:45:42.653Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-59"],"updated_at":"2026-11-06T08:57:32.08691Z"}],"euvd":[{"id":"EUVD-2026-72488","description":"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 or symlink protection. A local attacker who can write to the destination directory can win that race and redirect the write to another file.","status":"published","published":"2026-09-07T16:00:13Z","modified":"2026-11-06T07:45:42Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L","level":"medium"}],"updated_at":"2026-11-06T09:04:28.113071Z"}],"ghsa":[{"id":"GHSA-847x-vxjh-whpv","title":"A flaw was found in GLib2. When g_file_replace() is used with G_FILE_CREATE_REPLACE_DESTINATION...","description":"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 or symlink protection. A local attacker who can write to the destination directory can win that race and redirect the write to another file.","status":"published","published":"2026-09-07T18:31:32Z","modified":"2026-09-07T18:31:38Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L","level":"medium"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T15:11:27.823827Z"}],"nvd":[{"id":"CVE-2026-86469","description":"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 or symlink protection. A local attacker who can write to the destination directory can win that race and redirect the write to another file.","status":"published","published":"2026-09-07T16:17:30.713Z","modified":"2026-11-06T08:17:37.87Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-59"],"updated_at":"2026-11-06T11:59:57.113048Z"}],"osv":[{"id":"DEBIAN-CVE-2026-86469","description":"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 or symlink protection. A local attacker who can write to the destination directory can win that race and redirect the write to another file.","status":"published","published":"2026-09-07T16:17:30.713Z","modified":"2026-11-07T09:47:31.533521041Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L","level":"medium"}],"updated_at":"2026-11-07T10:14:39.995311Z"},{"id":"UBUNTU-CVE-2026-86469","description":"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 or symlink protection. A local attacker who can write to the destination directory can win that race and redirect the write to another file.","status":"published","published":"2026-09-07T16:17:00Z","modified":"2026-11-04T09:30:03.522420092Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L","level":"medium"}],"updated_at":"2026-11-04T09:34:03.871859Z"},{"id":"AZL-99993","title":"CVE-2026-86469 affecting package glib 2.78.6-11","description":"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 or symlink protection. A local attacker who can write to the destination directory can win that race and redirect the write to another file.","status":"published","published":"2026-09-07T16:17:30Z","modified":"2026-11-05T05:40:51Z","updated_at":"2026-11-05T16:41:35.156479Z"}]}}