Quick answers
- Is CVE-2026-84269 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-84269 being exploited in the wild.
- How severe is CVE-2026-84269?
- Medium severity, with a CVSS score of 6.5, published 1 September 2026.
- Which products and versions are affected?
- Gnome Gvfs <UNKNOWN>.
- Is there a fix for CVE-2026-84269?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-84269 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-84269?
- Check whether you run Gnome Gvfs at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a heap buffer overflow in the AFP backend's DSI (Data Stream Interface) read path. When processing a server response during share mounting, the code fails to validate that the length field provided by a malicious AFP server stays within the bounds of the pre-allocated reply buffer. An attacker running a malicious AFP server can craft a response with an oversized length value, causing the read operation to access memory past the intended buffer boundaries. This results in heap corruption and crashes the gvfsd-afp process. The attack requires that a client initiates a connection to the attacker-controlled server; no authentication bypass or prior local access is necessary.
Affected products
- GNOME gvfs <UNKNOWN>
Timeline
- 2026-09-01: disclosed