CVE-2022-36085

CRITICAL
Published Sep 8, 20223y ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Sep 8, 2022 3y ago
Last Modified Jun 17, 2026 2w ago

Description

Open Policy Agent (OPA) is an open source, general-purpose policy engine. The Rego compiler provides a (deprecated) `WithUnsafeBuiltins` function, which allows users to provide a set of built-in functions that should be deemed unsafe — and as such rejected — by the compiler if encountered in the policy compilation stage. A bypass of this protection has been found, where the use of the `with` keyword to mock such a built-in function (a feature introduced in OPA v0.40.0), isn’t taken into account by `WithUnsafeBuiltins`. Multiple conditions need to be met in order to create an adverse effect. Version 0.43.1 contains a patch for this issue. As a workaround, avoid using the `WithUnsafeBuiltins` function and use the `capabilities` feature instead.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-20 Improper Input Validation Validation
CWE-693

Affected Products 1

VendorProductVersionRange
openpolicyagentopen_policy_agent*≥0.40.0  –  <0.43.1

References 6

  • github.com https://github.com/open-policy-agent/opa/commit/25a597bc3f4985162e7f65f9c36599f4f8f55823
    PatchThird Party Advisory
  • github.com https://github.com/open-policy-agent/opa/commit/3e8c754ed007b22393cf65e48751ad9f6457fee8
    PatchThird Party Advisory
  • github.com https://github.com/open-policy-agent/opa/pull/4540
    ExploitPatchThird Party Advisory
  • github.com https://github.com/open-policy-agent/opa/pull/4616
    ExploitPatchThird Party Advisory
  • github.com https://github.com/open-policy-agent/opa/releases/tag/v0.43.1
    Third Party Advisory
  • github.com https://github.com/open-policy-agent/opa/security/advisories/GHSA-f524-rf33-2jjr
    ExploitPatchThird Party Advisory

Remediation

  • github.com https://github.com/open-policy-agent/opa/commit/25a597bc3f4985162e7f65f9c36599f4f8f55823
    PatchThird Party Advisory
  • github.com https://github.com/open-policy-agent/opa/commit/3e8c754ed007b22393cf65e48751ad9f6457fee8
    PatchThird Party Advisory
  • github.com https://github.com/open-policy-agent/opa/pull/4540
    ExploitPatchThird Party Advisory
  • github.com https://github.com/open-policy-agent/opa/pull/4616
    ExploitPatchThird Party Advisory
  • github.com https://github.com/open-policy-agent/opa/security/advisories/GHSA-f524-rf33-2jjr
    ExploitPatchThird Party Advisory