CVE-2026-87723 Untrusted Search Path (PATH Hijacking) in fuse-archive
Attackers can hijack execution paths to run arbitrary code by manipulating the PATH environment variable in fuse-archive.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-87723?
CVE-2026-87723 is a medium-severity command injection vulnerability in Google fuse-archive, published on 28 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
In Google fuse-archive versions prior to 1.24, an attacker who can prepend a directory to PATH or write a malicious binary to an attacker-controlled or writable directory appearing in PATH can hijack the execution pathway. This allows the attacker to execute arbitrary local code under the security context of the user running the fuse-archive process. The issue was partially mitigated in version 1.22 and fully resolved in 1.24 via refined selective PATH filtering.
Weakness: CWE-426
Which versions are affected by CVE-2026-87723?
How do I fix CVE-2026-87723?
No fix has been published for CVE-2026-87723 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-87723 being exploited?
There is no known exploitation of CVE-2026-87723 in the wild and no public exploit code.
Sources
Also known as GHSA-q4qj-wcfm-8x96.