CVE-2026-3008 Vulnerability in Notepad++

Medium 6.6 Published Updated

Attackers can exploit string injection in Notepad++ to leak memory addresses or crash the application, requiring users to update the software.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-3008?

CVE-2026-3008 is a medium-severity vulnerability in Notepad++, published on 27 Apr 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

Successful exploitation of the string injection vulnerability could allow an attacker to obtain memory address information or crash the application.

Weakness: CWE-134

Which versions are affected by CVE-2026-3008?

How do I fix CVE-2026-3008?

No fix has been published for CVE-2026-3008 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-3008 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3008 exists.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-v6h7-975g-34x5.

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