CVE-2025-11579 DoS via Out Of Memory Crash

Q: Which versions are affected by CVE-2025-11579?

6 open source packages ship an affected version, including github.com/nwaples/rardecode and github.com/nwaples/rardecode/v2. It affects 1 product.

Q: Is CVE-2025-11579 being exploited?

There is no known exploitation of CVE-2025-11579 in the wild and no public exploit code.

Medium 5.3 Published 10 Oct 2025 Updated 2 Dec 2025

An attacker can cause a denial of service via out-of-memory crash by providing a specially crafted RAR file to applications using the rardecode library.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2025-11579?

CVE-2025-11579 is a medium-severity denial of service vulnerability in nwaples rardecode, published on 10 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

github.com/nwaples/rardecode versions <=2.1.1 fail to restrict the dictionary size when reading large RAR dictionary sizes, which allows an attacker to provide a specially crafted RAR file and cause Denial of Service via an Out Of Memory Crash.

Weakness: CWE-789

Which versions are affected by CVE-2025-11579?

6 open source packages ship an affected version, including github.com/nwaples/rardecode and github.com/nwaples/rardecode/v2. It affects 1 product.

Package	Affected	Fixed in
`github.com/nwaples/rardecode` Go	All versions	None
`github.com/nwaples/rardecode` Go	All versions to `1.1.3`	None
`github.com/nwaples/rardecode` Go	All versions to `1.1.3`	None
`github.com/nwaples/rardecode/v2` Go	All versions	`2.2.0`
`github.com/nwaples/rardecode/v2` Go	All versions	`2.2.0`
`github.com/nwaples/rardecode/v2` Go	All versions	`2.2.0`

Linux distribution packages (1)

jfrog-cli openSUSE:Tumbleweed All versions 2.104.1-1.1

Products include Nwaples Rardecode.

How do I fix CVE-2025-11579?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-11579 being exploited?

There is no known exploitation of CVE-2025-11579 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as CLEANSTART-2026-AN93450, CLEANSTART-2026-AX54814, DEBIAN-CVE-2025-11579, GHSA-rwvp-r38j-9rgg, GO-2025-4020, MINI-3crm-wrw9-2fch and 14 more.