CVE-2026-28429 Talishar: Critical Path Traversal in gameName Parameter

High 7.5 Published Updated

Attackers can access unauthorized files via directory traversal in the gameName parameter of a standalone script in the Talishar web application.

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

What is CVE-2026-28429?

CVE-2026-28429 is a high-severity path traversal vulnerability in Talishar, published on 6 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Talishar is a fan-made Flesh and Blood project. Prior to commit 6be3871, a Path Traversal vulnerability was identified in the gameName parameter. While the application's primary entry points implement input validation, the ParseGamestate.php component can be accessed directly as a standalone script. In this scenario, the absence of internal sanitization allows for directory traversal sequences (e.g., ../) to be processed, potentially leading to unauthorized file access. This issue has been patched in commit 6be3871.

Weakness: CWE-22

Which versions are affected by CVE-2026-28429?

It affects 1 product.

Products include Talishar Talishar.

How do I fix CVE-2026-28429?

No fix has been published for CVE-2026-28429 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-2026-28429 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-28429 exists.

Sources

Also known as GHSA-f386-xhcw-jrx8.

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