{"cve":"CVE-2022-28946","nvd":{"published":"2022-05-19T19:15:07.737","modified":"2026-06-17T04:39:21.643","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":[],"references":["https://github.com/open-policy-agent/opa/commit/e9d3828db670cbe11129885f37f08cbf04935264","https://github.com/open-policy-agent/opa/commit/e9d3828db670cbe11129885f37f08cbf04935264"],"products":["openpolicyagent:open_policy_agent"],"source":"nvd","synced_at":"2026-10-19T21:31:59.322382750+00:00"},"epss":{"cve":"CVE-2022-28946","score":0.0104,"percentile":0.64003,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-x7f3-62pm-9p38","url":"https://osv.dev/vulnerability/GHSA-x7f3-62pm-9p38","summary":"Out of bounds memory access in github.com/open-policy-agent/opa","modified":"2026-09-10T03:49:43.555675003Z","packages":[{"ecosystem":"Go","name":"github.com/open-policy-agent/opa","purl":"pkg:golang/github.com/open-policy-agent/opa","ranges":["<0.40.0"],"fixed":["0.40.0"]}]},{"id":"GO-2022-0587","url":"https://osv.dev/vulnerability/GO-2022-0587","summary":"Out of bounds memory access in github.com/open-policy-agent/opa","modified":"2026-02-04T02:27:52.773117Z","packages":[{"ecosystem":"Go","name":"github.com/open-policy-agent/opa","purl":"pkg:golang/github.com/open-policy-agent/opa","ranges":["<0.40.0"],"fixed":["0.40.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}