{"schema_version":"1.7.3","id":"GO-2022-0587","published":"2022-05-20T00:00:26Z","modified":"2026-02-04T02:27:52.773117Z","aliases":["CVE-2022-28946","GHSA-x7f3-62pm-9p38"],"related":["CGA-hhxp-vvgj-pr2v"],"summary":"Out of bounds memory access in github.com/open-policy-agent/opa","details":"An issue in ast.Parser in Open Policy Agent causes the application to incorrectly interpret expressions, allowing a Denial of Service (DoS) via triggering out-of-range memory access.","affected":[{"package":{"name":"github.com/open-policy-agent/opa","ecosystem":"Go","purl":"pkg:golang/github.com/open-policy-agent/opa"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.40.0"}]}],"ecosystem_specific":{"imports":[{"path":"github.com/open-policy-agent/opa/ast","symbols":["CompileModules","CompileModulesWithOpt","MustCompileModules","MustCompileModulesWithOpts","MustParseBody","MustParseBodyWithOpts","MustParseExpr","MustParseImports","MustParseModule","MustParseModuleWithOpts","MustParsePackage","MustParseRef","MustParseRule","MustParseStatement","MustParseStatements","MustParseTerm","ParseBody","ParseBodyWithOpts","ParseExpr","ParseImports","ParseModule","ParseModuleWithOpts","ParsePackage","ParseRef","ParseRule","ParseStatement","ParseStatements","ParseStatementsWithOpts","ParseTerm","Parser.Parse","Parser.parseEvery","Parser.parseSome","metadataParser.Parse"]}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2022-0587.json"}}],"references":[{"type":"FIX","url":"https://github.com/open-policy-agent/opa/pull/4548"},{"type":"FIX","url":"https://github.com/open-policy-agent/opa/commit/e9d3828db670cbe11129885f37f08cbf04935264"}],"database_specific":{"review_status":"REVIEWED","url":"https://pkg.go.dev/vuln/GO-2022-0587"},"credits":[{"name":"Norbert Szetei of Doyensec"}]}