CVE-2024-23080Network attack vector

Application exception via null locale cache lookup

Published Apr 10, 2024 · Updated Jul 9, 2026

Null-pointer dereference in Joda-Time 2.12.5 allows attackers to trigger an exception by passing a null locale to wordBased(Locale). PeriodFormat.wordBased(Locale) uses the supplied locale directly as a ConcurrentHashMap cache key before loading its resource bundle, and the map rejects null keys. The claim requires a consuming application to pass null to this API, and the CVE is disputed because multiple parties found insufficient evidence that this behavior constitutes a vulnerability.

CVSS severity9.1
Critical
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null-pointer dereference in Joda-Time 2.12.5 allows attackers to trigger an exception by passing a null locale to wordBased(Locale). PeriodFormat.wordBased(Locale) uses the supplied locale directly as a ConcurrentHashMap cache key before loading its resource bundle, and the map rejects null keys. The claim requires a consuming application to pass null to this API, and the CVE is disputed because multiple parties found insufficient evidence that this behavior constitutes a vulnerability.

The record

CVE
CVE-2024-23080
Published
Apr 10, 2024
Updated
Jul 9, 2026
Vendor
Joda.org
Product
Joda-Time
Classifications
CWE-476
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.12.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Joda.org · Joda-Timeversion=2.12.5

Published CVSS scores

9.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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