{"id":"CVE-2026-77310","title":"jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor","summary":"jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. Prior to versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1 on their respective release lines, the java.net.InetAddress br…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-918"],"vendor":"fasterxml","product":"com.fasterxml.jackson.core:jackson-databind","affected":["com.fasterxml.jackson.core:jackson-databind >= 2.0.0, < 2.18.9","com.fasterxml.jackson.core:jackson-databind >= 2.19.0, < 2.21.5","com.fasterxml.jackson.core:jackson-databind >= 2.22.0, < 2.22.1","tools.jackson.core:jackson-databind >= 3.0.0, < 3.1.5","tools.jackson.core:jackson-databind >= 3.2.0, < 3.2.1"],"patched":["com.fasterxml.jackson.core:jackson-databind 2.18.9","com.fasterxml.jackson.core:jackson-databind 2.21.5","com.fasterxml.jackson.core:jackson-databind 2.22.1","tools.jackson.core:jackson-databind 3.1.5","tools.jackson.core:jackson-databind 3.2.1"],"published":"2026-08-24","updated":"2026-10-12","sourceUpdated":"2026-10-12T21:10:00.227","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77310","references":[{"url":"https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-vvgp-rfg2-7rr6","label":"security-advisories@github.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77310"},{"url":"https://github.com/FasterXML/jackson-databind/pull/6058"},{"url":"https://github.com/FasterXML/jackson-databind/commit/2fc7bd9057dd051d7dea0e5fcad89822d0fa5ebd"},{"url":"https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.18.9"},{"url":"https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.21.5"},{"url":"https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-2.22.1"},{"url":"https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-3.1.5"},{"url":"https://github.com/FasterXML/jackson-databind/releases/tag/jackson-databind-3.2.1"},{"url":"https://github.com/advisories/GHSA-vvgp-rfg2-7rr6"}],"tags":["nvd","ghsa","maven"],"epss":0.00313,"epssPercentile":0.24018,"aliases":["GHSA-vvgp-rfg2-7rr6"],"ecosystem":"maven","ingestedAt":"2026-09-09T21:22:45.549Z","slug":"CVE-2026-77310","body":"## Overview\n\njackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. Prior to versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1 on their respective release lines, the java.net.InetAddress branch of FromStringDeserializer.Std._deserialize() calls InetAddress.getByName() on attacker-controlled input, causing eager DNS resolution during deserialization and enabling DNS-based server-side request forgery and internal-host enumeration. This issue is fixed in versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-77310)\n\nAffected packages:\n\n- `com.fasterxml.jackson.core:jackson-databind >= 2.0.0, < 2.18.9`\n- `com.fasterxml.jackson.core:jackson-databind >= 2.19.0, < 2.21.5`\n- `com.fasterxml.jackson.core:jackson-databind >= 2.22.0, < 2.22.1`\n- `tools.jackson.core:jackson-databind >= 3.0.0, < 3.1.5`\n- `tools.jackson.core:jackson-databind >= 3.2.0, < 3.2.1`\n\nPatched in:\n\n- `com.fasterxml.jackson.core:jackson-databind 2.18.9`\n- `com.fasterxml.jackson.core:jackson-databind 2.21.5`\n- `com.fasterxml.jackson.core:jackson-databind 2.22.1`\n- `tools.jackson.core:jackson-databind 3.1.5`\n- `tools.jackson.core:jackson-databind 3.2.1`\n\nSource: https://github.com/advisories/GHSA-vvgp-rfg2-7rr6","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}