CVE-2026-77310

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{"bugzilla": {"description": "com.fasterxml.jackson.core/jackson-databind: jackson-databind: Server-Side Request Forgery and internal host enumeration via eager DNS resolution", "id": "2523089", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2523089"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "status": "draft"}, "cwe": "CWE-918", "details": ["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 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.", "A flaw was found in jackson-databind. A remote attacker can exploit this vulnerability by providing specially crafted input during data deserialization, specifically when `java.net.InetAddress` objects are processed. This causes the application to perform eager DNS resolution on attacker-controlled hostnames, leading to a Server-Side Request Forgery (SSRF) vulnerability. This allows for out-of-band data exfiltration or the enumeration of internal network hosts."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-77310", "package_state": [{"cpe": "cpe:/a:redhat:exploit_intelligence:0", "fix_state": "Out of support scope", "package_name": "exploit-intelligence/agent-client-rhel9", "product_name": "Exploit Intelligence"}, {"cpe": "cpe:/a:redhat:ocp_tools", "fix_state": "Out of support scope", "package_name": "jenkins", "product_name": "OpenShift Developer Tools and Services"}, {"cpe": "cpe:/a:redhat:ocp_tools", "fix_state": "Out of support scope", "package_name": "jenkins-2-plugins", "product_name": "OpenShift Developer Tools and Services"}, {"cpe": "cpe:/a:redhat:ocp_tools", "fix_state": "Out of support 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Red Hat products utilizing `jackson-databind` are susceptible to server-side request forgery (SSRF) and internal host enumeration. This occurs when attacker-controlled input, containing hostnames or IP addresses, is deserialized, leading to eager DNS resolution and potential information disclosure or internal network probing.", "threat_severity": "Moderate"}

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