{"id":"GHSA-hgj6-7826-r7m5","summary":"jackson-databind: InetSocketAddress deserialization triggers eager DNS resolution (SSRF)","details":"## Summary\n`JDKFromStringDeserializer` constructed `InetSocketAddress` with `new InetSocketAddress(host, port)`, which performs eager DNS name resolution for hostname inputs at deserialization time. An application that binds untrusted JSON into a type containing an `InetSocketAddress` field issues an attacker-chosen DNS query during `readValue`, before any application-level validation or connect logic. The fix uses `InetSocketAddress.createUnresolved(host, port)`, deferring DNS to an explicit connect.\n\n## Impact\nAn attacker controlling JSON deserialized into an `InetSocketAddress`-bearing type can force outbound DNS lookups for attacker-chosen hostnames at deserialization time (SSRF / DNS-based out-of-band interaction / internal-resolver probing), purely from binding.\n\n## Affected / Patched (verified via `git tag --contains` on `1f5a103`)\n- 2.18 line: `\u003e= 2.18.0, \u003c 2.18.8` -\u003e fixed in **2.18.8**\n- 2.19-2.21 line: `\u003e= 2.19.0, \u003c 2.21.4` -\u003e fixed in **2.21.4**\n- 3.x line: `\u003e= 3.0.0, \u003c 3.1.4` -\u003e fixed in **3.1.4**\n\n## Severity / CWE\nMaintainer: minor. Reporter: LOW. CWE-918 (SSRF).\n\n## Upstream fix\nFasterXML/jackson-databind#5951 (\"Improve InetSocketAddress deserialization\"). Released 2026-06-04 in 2.18.8 / 2.21.4 / 3.1.4.\n\n## Credits\nOmkhar Arasaratnam (@omkhar) - finder.","aliases":["CVE-2026-54514"],"modified":"2026-07-20T21:30:24.362691967Z","published":"2026-06-23T21:22:54Z","database_specific":{"nvd_published_at":"2026-06-23T21:17:02Z","cwe_ids":["CWE-918"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-06-23T21:22:54Z"},"references":[{"type":"WEB","url":"https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-hgj6-7826-r7m5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54514"},{"type":"WEB","url":"https://github.com/FasterXML/jackson-databind/pull/5951"},{"type":"WEB","url":"https://github.com/FasterXML/jackson-databind/commit/1f5a1037b1e9e05920e755cb35f198bcd46667e4"},{"type":"PACKAGE","url":"https://github.com/FasterXML/jackson-databind"}],"affected":[{"package":{"name":"com.fasterxml.jackson.core:jackson-databind","ecosystem":"Maven","purl":"pkg:maven/com.fasterxml.jackson.core/jackson-databind"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.18.8"}]}],"versions":["2.0.0","2.0.1","2.0.2","2.0.4","2.0.5","2.0.6","2.1.0","2.1.1","2.1.2","2.1.3","2.1.4","2.1.5","2.10.0","2.10.0.pr1","2.10.0.pr2","2.10.0.pr3","2.10.1","2.10.2","2.10.3","2.10.4","2.10.5","2.10.5.1","2.11.0","2.11.0.rc1","2.11.1","2.11.2","2.11.3","2.11.4","2.12.0","2.12.0-rc1","2.12.0-rc2","2.12.1","2.12.2","2.12.3","2.12.4","2.12.5","2.12.6","2.12.6.1","2.12.7","2.12.7.1","2.12.7.2","2.13.0","2.13.0-rc1","2.13.0-rc2","2.13.1","2.13.2","2.13.2.1","2.13.2.2","2.13.3","2.13.4","2.13.4.1","2.13.4.2","2.13.5","2.14.0","2.14.0-rc1","2.14.0-rc2","2.14.0-rc3","2.14.1","2.14.2","2.14.3","2.15.0","2.15.0-rc1","2.15.0-rc2","2.15.0-rc3","2.15.1","2.15.2","2.15.3","2.15.4","2.16.0","2.16.0-rc1","2.16.1","2.16.2","2.17.0","2.17.0-rc1","2.17.1","2.17.2","2.17.3","2.18.0","2.18.0-rc1","2.18.1","2.18.2","2.18.3","2.18.4","2.18.5","2.18.6","2.18.7","2.2.0","2.2.0-rc1","2.2.1","2.2.2","2.2.3","2.2.4","2.3.0","2.3.0-rc1","2.3.1","2.3.2","2.3.3","2.3.4","2.3.5","2.4.0","2.4.0-rc1","2.4.0-rc2","2.4.0-rc3","2.4.1","2.4.1.1","2.4.1.2","2.4.1.3","2.4.2","2.4.3","2.4.4","2.4.5","2.4.5.1","2.4.6","2.4.6.1","2.5.0","2.5.0-rc1","2.5.1","2.5.2","2.5.3","2.5.4","2.5.5","2.6.0","2.6.0-rc1","2.6.0-rc2","2.6.0-rc3","2.6.0-rc4","2.6.1","2.6.2","2.6.3","2.6.4","2.6.5","2.6.6","2.6.7","2.6.7.1","2.6.7.2","2.6.7.3","2.6.7.4","2.6.7.5","2.7.0","2.7.0-rc1","2.7.0-rc2","2.7.0-rc3","2.7.1","2.7.1-1","2.7.2","2.7.3","2.7.4","2.7.5","2.7.6","2.7.7","2.7.8","2.7.9","2.7.9.1","2.7.9.2","2.7.9.3","2.7.9.4","2.7.9.5","2.7.9.6","2.7.9.7","2.8.0","2.8.0.rc1","2.8.0.rc2","2.8.1","2.8.10","2.8.11","2.8.11.1","2.8.11.2","2.8.11.3","2.8.11.4","2.8.11.5","2.8.11.6","2.8.2","2.8.3","2.8.4","2.8.5","2.8.6","2.8.7","2.8.8","2.8.8.1","2.8.9","2.9.0","2.9.0.pr1","2.9.0.pr2","2.9.0.pr3","2.9.0.pr4","2.9.1","2.9.10","2.9.10.1","2.9.10.2","2.9.10.3","2.9.10.4","2.9.10.5","2.9.10.6","2.9.10.7","2.9.10.8","2.9.2","2.9.3","2.9.4","2.9.5","2.9.6","2.9.7","2.9.8","2.9.9","2.9.9.1","2.9.9.2","2.9.9.3"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-hgj6-7826-r7m5/GHSA-hgj6-7826-r7m5.json"}},{"package":{"name":"com.fasterxml.jackson.core:jackson-databind","ecosystem":"Maven","purl":"pkg:maven/com.fasterxml.jackson.core/jackson-databind"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.19.0"},{"fixed":"2.21.4"}]}],"versions":["2.19.0","2.19.1","2.19.2","2.19.3","2.19.4","2.20.0","2.20.0-rc1","2.20.1","2.20.2","2.21.0","2.21.1","2.21.2","2.21.3"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-hgj6-7826-r7m5/GHSA-hgj6-7826-r7m5.json"}},{"package":{"name":"com.fasterxml.jackson.core:jackson-databind","ecosystem":"Maven","purl":"pkg:maven/com.fasterxml.jackson.core/jackson-databind"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.1.4"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-hgj6-7826-r7m5/GHSA-hgj6-7826-r7m5.json"}},{"package":{"name":"tools.jackson.core:jackson-databind","ecosystem":"Maven","purl":"pkg:maven/tools.jackson.core/jackson-databind"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.19.0"},{"fixed":"2.21.4"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-hgj6-7826-r7m5/GHSA-hgj6-7826-r7m5.json"}},{"package":{"name":"tools.jackson.core:jackson-databind","ecosystem":"Maven","purl":"pkg:maven/tools.jackson.core/jackson-databind"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.1.4"}]}],"versions":["3.0.0","3.0.1","3.0.2","3.0.3","3.0.4","3.1.0","3.1.0-rc1","3.1.1","3.1.2","3.1.3"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-hgj6-7826-r7m5/GHSA-hgj6-7826-r7m5.json"}}],"schema_version":"1.9.0","severit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