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CVE-2026-54514 is an eager DNS-resolution vulnerability in Jackson-databind's JDKFromStringDeserializer when deserializing InetSocketAddress values. The deserializer constructs addresses using new InetSocketAddress(host, port), which resolves hostname inputs immediately. Applications that bind attacker-controlled JSON into objects containing an InetSocketAddress field consequently issue attacker-selected DNS queries during readValue, before application-level validation or connection logic. The vulnerability affects releases beginning with 2.0.0 and preceding the applicable fixed releases, 2.18.8, 2.21.4, and 3.1.4. The fix uses InetSocketAddress.createUnresolved(host, port) to defer resolution until an explicit connection operation.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
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20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An unspecified vulnerability covered by an Alma Linux 9.2 security check. The content assigns it a CVSS v2 vector of AV:N/AC:L/Au:S/C:C/I:C/A:C.
A prior jackson-databind eager-DNS-resolution SSRF vulnerability affecting InetSocketAddress deserialization. Its remediation is described as incomplete because the analogous InetAddress deserialization branch remained vulnerable.
Unknown
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.