RCE in Horde Vfs
CVE-2026-60102
Horde Virtual File System (VFS) API before 3.0.1 contains an OS command injection vulnerability in the Horde_Vfs_Smb driver where the _escapeShellCommand() method fails to sanitize command substitution sequences, allowing authenticated attackers to inject arbitrary shell commands through user-controlled filenames. Attackers can supply malicious filenames containing unescaped command substitution payloads through operations such as file upload, folder creation, rename, or deletion, which are interpolated into a double-quoted shell context and executed via proc_open() through /bin/sh -c before smbclient runs, resulting in arbitrary command execution on the underlying system.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.033 (88.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: 0.000
Affected products
- Horde Vfs — versions 0
Weakness classification (CWE)
References
- github.com/horde/Vfs/releases/tag/v3.0.1 (release-notes)
- github.com/horde/Vfs/pull/10 (issue-tracking)
- github.com/horde/Vfs/commit/41f74b4acfc144e09013d04dd121e0a5da808361 (patch)
- www.vulncheck.com/advisories/horde-vfs-os-command-injection-via-horde-vfs-smb-d… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-60102?
- CVE-2026-60102 is a high-severity vulnerability in Horde Vfs, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-07-08.
- How severe is CVE-2026-60102?
- High severity. CVSS v3 base score is 8.8 out of 10.