{"id":"CVE-2022-31139","summary":"No security checking for UnsafeAccess.getInstance() in UnsafeAccessor","details":"UnsafeAccessor (UA) is a bridge to access jdk.internal.misc.Unsafe & sun.misc.Unsafe. Normally, if UA is loaded as a named module, the internal data of UA is protected by JVM and others can only access UA via UA's standard API. The main application can set up `SecurityCheck.AccessLimiter` for UA to limit access to UA. Starting with version 1.4.0 and prior to version 1.7.0, when `SecurityCheck.AccessLimiter` is set up, untrusted code can access UA without limitation, even when UA is loaded as a named module. This issue does not affect those for whom `SecurityCheck.AccessLimiter` is not set up. Version 1.7.0 contains a patch.","aliases":["GHSA-cr6p-23cf-w9g9"],"modified":"2026-08-27T08:15:18.865793Z","published":"2022-07-11T18:25:11Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31139.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-200"]},"references":[{"type":"WEB","url":"https://github.com/Karlatemp/UnsafeAccessor/releases/tag/1.7.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31139.json"},{"type":"ADVISORY","url":"https://github.com/Karlatemp/UnsafeAccessor/security/advisories/GHSA-cr6p-23cf-w9g9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-31139"},{"type":"FIX","url":"https://github.com/Karlatemp/UnsafeAccessor/commit/4ef83000184e8f13239a1ea2847ee401d81585fd"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/karlamoe/unsafe-accessor","events":[{"introduced":"42a3ec0012ee32af040ec0c83d32ff03b5b72a89"},{"fixed":"de5d97c6eb5f6af5df929bb02a1ccce3849628fe"},{"fixed":"4ef83000184e8f13239a1ea2847ee401d81585fd"}],"database_specific":{"cpe":"cpe:2.3:a:unsafe_accessor_project:unsafe_accessor:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.4.0"},{"fixed":"1.7.0"}],"source":["CPE_RANGE","REFERENCES"]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-31139.json","vanir_signatures_modified":"2026-08-27T08:15:18Z","vanir_signatures":[{"id":"CVE-2022-31139-042e206e","signature_type":"Line","signature_version":"v1","source":"https://github.com/karlamoe/unsafe-accessor/commit/4ef83000184e8f13239a1ea2847ee401d81585fd","target":{"file":"api/src/main/java/io/github/karlatemp/unsafeaccessor/Root.java"},"deprecated":false,"digest":{"line_hashes":["276211520949689525906710762932037517577","61237748990846886015580643052983705232","198465552813145290248279674272781361708","301432691511952116807847073780040669689","65696790175831737429135445041120433134"],"threshold":0.9}},{"signature_version":"v1","source":"https://github.com/karlamoe/unsafe-accessor/commit/4ef83000184e8f13239a1ea2847ee401d81585fd","target":{"file":"api/src/main/java/io/github/karlatemp/unsafeaccessor/UnsafeAccess.java","function":"getInstance"},"deprecated":false,"digest":{"length":71,"function_hash":"133882639534931489651667530240828065711"},"id":"CVE-2022-31139-3673d00c","signature_type":"Function"},{"source":"https://github.com/karlamoe/unsafe-accessor/commit/4ef83000184e8f13239a1ea2847ee401d81585fd","target":{"file":"api/src/main/java/io/github/karlatemp/unsafeaccessor/UnsafeAccess.java"},"deprecated":false,"digest":{"line_hashes":["317604557034641769031988446587918086979","96641214441246372653098416829805062759","147421538160478447053894792659446844062","91246230820035578397817676334229054881"],"threshold":0.9},"id":"CVE-2022-31139-7de79cf5","signature_type":"Line","signature_version":"v1"},{"digest":{"function_hash":"173710698265814153753509711984784826444","length":141},"id":"CVE-2022-31139-9edc6282","signature_type":"Function","signature_version":"v1","source":"https://github.com/karlamoe/unsafe-accessor/commit/4ef83000184e8f13239a1ea2847ee401d81585fd","target":{"file":"api/src/main/java/io/github/karlatemp/unsafeaccessor/Root.java","function":"throw0"},"deprecated":false}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}