How severe is CVE-2026-54514?

CVE-2026-54514 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-54514 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-54514?

CVE-2026-54514 affects Fasterxml Jackson-databind. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-54514?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-54514 have an EU (EUVD) identifier?

Yes. CVE-2026-54514 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38592.

When was CVE-2026-54514 published?

CVE-2026-54514 was published on 2026-06-23 and last updated on 2026-06-27.

CVE-2026-54514

CVE-2026-54514 is a medium-severity vulnerability in Fasterxml Jackson-databind with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38592
Weakness: CWE-918
Affected product: Fasterxml Jackson-databind
Published: 2026-06-23
Last modified: 2026-06-27

Description

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.0.0 until 2.18.8, 2.21.4, and 3.1.4, 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. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.

Frequently asked questions

What is CVE-2026-54514?: jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.0.0 until 2.18.8, 2.21.4, and 3.1.4, 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. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.
How severe is CVE-2026-54514?: CVE-2026-54514 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-54514 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-54514?: CVE-2026-54514 affects Fasterxml Jackson-databind. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-54514?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-54514 have an EU (EUVD) identifier?: Yes. CVE-2026-54514 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38592.
When was CVE-2026-54514 published?: CVE-2026-54514 was published on 2026-06-23 and last updated on 2026-06-27.

References

Affected products (1)

cpe:2.3:a:fasterxml:jackson-databind:*:*:*:*:*:*:*:*

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