CVE-2026-84269
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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 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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| GNOME | gvfs | 0 < 1.60.2 | affected |
Weaknesses
- CWE-122: Heap-based Buffer Overflow
Workarounds
To mitigate this vulnerability, do not connect to untrusted AFP servers.
References
- https://access.redhat.com/security/cve/CVE-2026-84269
- https://bugzilla.redhat.com/show_bug.cgi?id=2526784
- https://gitlab.gnome.org/GNOME/gvfs/-/issues/863
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