CVE-2026-64836 ICEcoder through 8.1 Path Traversal via Ineffective File::check() Confinement

High 8.7 Published Updated

Authenticated attackers can bypass file confinement checks to read, write, or delete arbitrary files outside the document root in ICEcoder.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-64836?

CVE-2026-64836 is a high-severity path traversal vulnerability in ICEcoder, published on 10 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

ICEcoder versions through 8.1 contain a path traversal vulnerability in the file-control endpoint due to a logic error in the document-root confinement check. The File::check() validation function compares realpath() to boolean true, which never succeeds, allowing authenticated attackers to submit traversal sequences or absolute paths in the file parameter to read, write, or delete files outside the configured document root.

Weakness: CWE-697, CWE-22

Which versions are affected by CVE-2026-64836?

How do I fix CVE-2026-64836?

No fix has been published for CVE-2026-64836 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-64836 being exploited?

There is no known exploitation of CVE-2026-64836 in the wild and no public exploit code.

Sources

Also known as GHSA-wx3p-7qfr-rqrp.

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