CVE-2022-33082 Denial of service in Open Policy Agent

What is CVE-2022-33082?

CVE-2022-33082 is a high-severity denial of service vulnerability in n/a, published on 30 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue in the AST parser (ast/compile.go) of Open Policy Agent v0.10.2 allows attackers to cause a Denial of Service (DoS) via a crafted input.

Which versions are affected by CVE-2022-33082?

3 open source packages ship an affected version, including github.com/open-policy-agent/opa. It affects 1 product.

Products include Openpolicyagent Open Policy Agent.

How do I fix CVE-2022-33082?

Upgrade github.com/open-policy-agent/opa to 0.42.0 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-2022-33082 being exploited?

There is no known exploitation of CVE-2022-33082 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Other vulnerabilities in n/a

• CVE-2022-28946 Out of bounds memory access in github.com/open-policy-agent/opa High 7.5
• CVE-2022-36085 OPA Compiler: Bypass of WithUnsafeBuiltins using `with` keyword to mock functions High 7.4
• CVE-2022-23628 Array literal misordering in github.com/open-policy-agent/opa Medium 6.3
• CVE-2024-8260 OPA SMB Force-Authentication Medium 6.1

Sources

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

Also known as GHSA-2m4x-4q9j-w97g, GO-2022-0574.