CVE-2024-28122 JWX vulnerable to a denial of service attack using compressed JWE message

What is CVE-2024-28122?

CVE-2024-28122 is a medium-severity denial of service vulnerability in lestrrat-go jwx, published on 9 Mar 2024. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

JWX is Go module implementing various JWx (JWA/JWE/JWK/JWS/JWT, otherwise known as JOSE) technologies. This vulnerability allows an attacker with a trusted public key to cause a Denial-of-Service (DoS) condition by crafting a malicious JSON Web Encryption (JWE) token with an exceptionally high compression ratio. This issue has been patched in versions 1.2.29 and 2.0.21.

Weakness: CWE-400

Which versions are affected by CVE-2024-28122?

6 open source packages ship an affected version, including github.com/lestrrat-go/jwx and github.com/lestrrat-go/jwx/v2. It affects 1 product.

Products include Lestrrat-Go Jwx.

How do I fix CVE-2024-28122?

Upgrade github.com/lestrrat-go/jwx to 1.2.29 or later.

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-2024-28122 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-28122 exists.

Other vulnerabilities in lestrrat-go jwx

• CVE-2023-49290 Malicious parameters can cause a denial of service in lestrrat-go/jwx Medium 5.3
• CVE-2024-21664 Parsing JSON serialized payload without protected field can lead to segfault Medium 4.3

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-hj3v-m684-v259, GO-2024-2632, MINI-2268-jc36-p9mc, MINI-44w4-g8rh-fch5, MINI-7cqx-pcq2-4wr4, MINI-ffmj-967w-w75h and 8 more.