{"id":"CVE-2026-33818","state":"PUBLISHED","title":"Enforce maximum recursion depth in encoding/asn1","description":"Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures.","publishedAt":"2026-08-13T21:58:52.821Z","updatedAt":"2026-10-29T22:22:36.535Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Go","products":["Go standard library encoding/asn1"],"affected":[{"vendor":"Go standard library","product":"encoding/asn1","packageName":"encoding/asn1","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.25.13","versionType":"semver"},{"version":"1.26.0-0","status":"affected","lessThan":"1.26.6","versionType":"semver"},{"version":"1.27.0-0","status":"affected","lessThan":"1.27.0-rc.3","versionType":"semver"}],"collectionURL":"https://pkg.go.dev","programRoutines":[{"name":"parseSequenceOf"},{"name":"parseField"},{"name":"UnmarshalWithParams"},{"name":"Unmarshal"}]}],"references":["https://go.dev/issue/80405","https://groups.google.com/g/golang-announce/c/94pEornpRlI","https://go.dev/cl/814980","https://pkg.go.dev/vuln/GO-2026-5972"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T23:16:04.497Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/33xxx/CVE-2026-33818.json","commit":"dc7676b3f67d6707e4927968546e7e0125ff7ec7","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33818","state":"PUBLISHED","datePublished":"2026-08-13T21:58:52.821Z","dateUpdated":"2026-10-29T22:22:36.535Z","assignerShortName":"Go","assignerOrgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","dateReserved":"2026-03-23T20:35:32.815Z"},"containers":{"cna":{"title":"Enforce maximum recursion depth in encoding/asn1","descriptions":[{"lang":"en","value":"Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures."}],"affected":[{"vendor":"Go standard library","product":"encoding/asn1","packageName":"encoding/asn1","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.25.13","versionType":"semver"},{"version":"1.26.0-0","status":"affected","lessThan":"1.26.6","versionType":"semver"},{"version":"1.27.0-0","status":"affected","lessThan":"1.27.0-rc.3","versionType":"semver"}],"collectionURL":"https://pkg.go.dev","programRoutines":[{"name":"parseSequenceOf"},{"name":"parseField"},{"name":"UnmarshalWithParams"},{"name":"Unmarshal"}]}],"references":[{"url":"https://go.dev/issue/80405"},{"url":"https://groups.google.com/g/golang-announce/c/94pEornpRlI"},{"url":"https://go.dev/cl/814980"},{"url":"https://pkg.go.dev/vuln/GO-2026-5972"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-400: Uncontrolled Resource Consumption"}]}],"providerMetadata":{"shortName":"Go","orgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","dateUpdated":"2026-10-29T22:22:36.535Z"},"credits":[{"lang":"en","value":"Marwan Atia (marwansamir688@gmail.com)"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-14T15:11:19.904646Z","id":"CVE-2026-33818","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","type":"CWE","lang":"en","description":"CWE-400 Uncontrolled Resource Consumption"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-14T15:12:34.877Z"}}]}}}