{"id":"CVE-2026-84269","title":"Gvfs: afp: heap-based buffer overflow in dsi read path","summary":"A flaw was found in the AFP backend in gvfs. When mounting a share, a malicious AFP server can cause the DSI read path to process a length that exceeds the size requested by the client. The function does not verify the server-provided le…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-122"],"vendor":"GNOME","product":"gvfs","affected":["gvfs < 1.60.2","gvfs (all versions)","gvfs","gvfs (all versions)","gvfs (all versions)","gvfs (all versions)"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-04T02:04:25.301415Z"},"exploitAvailable":true,"published":"2026-09-01","updated":"2026-11-06","sourceUpdated":"2026-11-06T01:05:53.431Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-84269","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-84269"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2526784","label":"RHBZ#2526784"},{"url":"https://gitlab.gnome.org/GNOME/gvfs/-/issues/863"}],"tags":["cve.org","exploit-available"],"epss":0.00302,"epssPercentile":0.23107,"ingestedAt":"2026-11-06T01:43:15.122Z","slug":"CVE-2026-84269","body":"## Overview\n\nA flaw was found in the AFP backend in gvfs. When mounting a share, a malicious AFP server can cause the DSI read path to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the pre-sized reply buffer, causing the operation to access past the intended boundaries. This issue allows a malicious server to overflow a heap buffer and crash the gvfsd-afp process, resulting in a denial of service.\n\n## Affected\n\n- `gvfs < 1.60.2`\n- `gvfs (all versions)`\n- `gvfs`\n- `gvfs (all versions)`\n- `gvfs (all versions)`\n- `gvfs (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n### Workarounds\n\nTo mitigate this vulnerability, do not connect to untrusted AFP servers.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}