CVE-2026-54514: jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Proce

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2026-54514 is a medium-severity flaw (CVSS 5.3) affecting jackson-databind. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 attacke

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-06-23
Last modified	2026-10-25

Publisher (CNA): GitHub, Inc. · Vendor: fasterxml

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-23 21:17 UTCPublished CVE record published
2026-10-25 23:10 UTCUpdated Record last modified

fasterxml jackson-databind UPGRADE

Affected: >= 2.0.0 and < 2.18.8 · >= 2.19.0 and < 2.21.4 · >= 3.0.0 and < 3.1.4

Fixed in: 2.18.8, 2.21.4, 3.1.4

Safe to downgrade to: a release before 2.0.0

1. Check installed version

apt-cache policy jackson-databind || rpm -q jackson-databind || jackson-databind --version

2. UPGRADE to 2.18.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade jackson-databind

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade jackson-databind

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.0.0 (Debian / Ubuntu)

apt-cache madison jackson-databind sudo apt install jackson-databind=<VERSION_BEFORE_2.0.0> sudo apt-mark hold jackson-databind

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list jackson-databind sudo dnf downgrade jackson-databind-<VERSION_BEFORE_2.0.0> sudo dnf versionlock add jackson-databind

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-54514?

jackson-databind: upgrade to 2.18.8, 2.21.4, 3.1.4. Exact commands for each OS are on this page.

Is CVE-2026-54514 being exploited?

CVE-2026-54514 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-54514 affect?

CVE-2026-54514 affects jackson-databind. Severity is medium (CVSS 5.3). 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 InetSocketAddre

How urgent is CVE-2026-54514?

Priority 31/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-54512 HIGH 8.1 UPGRADE jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Proce
CVE-2026-54513 HIGH 8.1 UPGRADE jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Proce
CVE-2026-50193 HIGH 7.5 UPGRADE jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Proce
CVE-2026-54518 MEDIUM 6.5 UPGRADE jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Proce
CVE-2026-54515 MEDIUM 5.3 UPGRADE jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Proce

References

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