An issue in the component ast/parser.go of Open Policy Agent v0.39.0 causes the…
Priority LOW 35CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-119 and the CVSS impact.
Summary
An issue in the component ast/parser.go of Open Policy Agent v0.39.0 causes the application to incorrectly interpret every expression, causing a Denial of Service (DoS) via triggering out-of-range memory access.
Why it matters now
EPSS 0.0104 64th percentileScored 2026-11-07
Fix Fixed github.com/open-policy-agent/opa (Go): 0.40.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | github.com/open-policy-agent/opa (Go) | before 0.40.0 | 0.40.0 | Patch available | GHSA-x7f3-62pm-9p38 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/open-policy-agent/opa (Go) Vendor— Affected before 0.40.0 Fixed in 0.40.0 Patch available GHSA-x7f3-62pm-9p38
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openpolicyagent:open_policy_agent:0.39.0:*:*:*:*:*:*:* | 0.39.0 | Vulnerable | open-policy-agent |
- cpe:2.3:a:openpolicyagent:open_policy_agent:0.39.0:*:*:*:*:*:*:* Versions 0.39.0 Vulnerable ·open-policy-agent
Remediation
- Fix · GHSA-x7f3-62pm-9p38 github.com/open-policy-agent/opa (Go) Fixed in 0.40.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-28946
- 2026-10-03 Alias added: GHSA-x7f3-62pm-9p38
References
More open-policy-agent Open Policy Agent vulnerabilities
- TI-2022-16508 OPA Compiler: Bypass of WithUnsafeBuiltins using `with` keyword to mock functions CVSS 3.1CRITICAL 9.8
- TI-2022-07681 Array literal misordering in github.com/open-policy-agent/opa CVSS 3.1MEDIUM 6.3
- TI-2022-14552 An issue in the AST parser (ast/compile.go) of Open Policy Agent v0.10.2 allows attackers… CVSS 3.1HIGH 7.5
- TI-2024-07657 OPA SMB Force-Authentication CVSS 3.1HIGH 7.3
Sources
- CVE-2022-28946 · CVE Program
- CVE-2022-28946 · NVD
- FIRST EPSS
- GHSA-x7f3-62pm-9p38 · GitHub Advisory Database · CC BY 4.0
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