CVE-2026-47187

critical

Assigned by CNA: github_m

Published 2026-08-19 · Modified 2026-08-19

Discuss on Community Propose mitigation

CVSS v3

9.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.3

Description

SSHFS is a network filesystem client for connecting to SSH servers. Prior to version 3.7.6, a rogue SFTP server can return absolute symlink targets or relative targets containing parent-directory components that SSHFS passes through FUSE for resolution by the client kernel against the local filesystem. The documented transform_symlinks mitigation does not contain relative targets because transform_symlink() returns early at sshfs.c:2181, while sshfs_readlink() at sshfs.c:2234 to sshfs.c:2236 otherwise copies the server-supplied link target to the kernel. A victim or victim-side tool that follows such a link through ordinary operations such as cp, rsync, backup tooling, or an editor can disclose readable local files back to the server or write server-controlled content to writable local files, potentially including startup or scheduled-task files. This issue is fixed in version 3.7.6.

Predictions

Exploit likelihood

95%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2026-47187 NameCVE-2026-47187 SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) Debian Bugs1138293 Vulnerable and fixed packages The table below lists information on source packages. Source PackageReleaseVersionStatus sshfs-fuse (PTS)bullseye3.7.1+repack-2vulnerable forky, bookworm,…

CVE-2026-47187

Name	CVE-2026-47187
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1138293

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
sshfs-fuse (PTS)	bullseye	3.7.1+repack-2	vulnerable
	forky, bookworm, trixie	3.7.3-1.1	vulnerable
	sid	3.7.3-1.2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
sshfs-fuse	source	(unstable)	3.7.3-1.2			1138293

Notes

[trixie] - sshfs-fuse <no-dsa> (Minor issue)
[bookworm] - sshfs-fuse <no-dsa> (Minor issue)
https://www.openwall.com/lists/oss-security/2026/05/30/3
https://github.com/libfuse/sshfs/security/advisories/GHSA-pjv6-2c3f-r357
https://github.com/libfuse/sshfs/pull/361
Fixed by: https://github.com/libfuse/sshfs/commit/bcd132f17ccf1b8592a229df797c9b08883fec26 (sshfs-3.7.6)

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

[trixie] - sshfs-fuse <no-dsa> (Minor issue)[bookworm] - sshfs-fuse <no-dsa> (Minor issue)https://www.openwall.com/lists/oss-security/2026/05/30/3https://github.com/libfuse/sshfs/security/advisories/GHSA-pjv6-2c3f-r357https://github.com/libfuse/sshfs/pull/361Fixed by: https://github.com/libfuse/sshfs/commit/bcd132f17ccf1b8592a229df797c9b08883fec26 (sshfs-3.7.6)

OS impact

Debian Mixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`3.7.3-1.2~deb13u1`
sid	Fixed	`3.7.3-1.2`
forky	Fixed	`3.7.3-1.2`
bullseye	Affected	—
bookworm	Fixed	`3.7.3-1.2~deb12u1`

References

CWEs

CWE-59

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.