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CVE-2026-84269

Gvfs: afp: heap-based buffer overflow in dsi read path

Published: Sep 1, 2026Updated: Sep 4, 2026 Sources: CVE List NVDCWE-122
6.5MEDIUM
NVD MITRE
EPSS Score
0.5%
Top 63.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only
Self-Check
OpenVAS

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-122

Affected Products

GNOME
oss-project·USaka glib, gnome project
gvfsOn-premDesktop App
Consumer Software / productivity
Red Hat
commercial·US
Red Hat Enterprise Linux 10On-premOS
Operating Systems / linux-distro
and 4 more affected products View all →

Exploitability

Workaround Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Privilege Escalation
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References

https://access.redhat.com/security/cve/CVE-2026-84269
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2526784
bugzilla.redhat.com
https://gitlab.gnome.org/GNOME/gvfs/-/issues/863
gitlab.gnome.org

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