CVE-2026-31378Network attack vector

Unauthenticated URL allowlist bypass via jar wrapper

Published May 19, 2026 · Updated May 19, 2026

Improper input validation in Apache OFBiz before 24.09.06 allows remote attackers to bypass URL host restrictions with crafted jar URLs. UtilXml.readXmlDocument validates the empty host of the outer jar wrapper, then opens the inner URL without checking its host against the configured allowlist. No authentication or user interaction is required; the public advisory does not identify the request entry point or a code-execution consequence.

CVSS severity6.5
Medium
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Apache OFBiz before 24.09.06 allows remote attackers to bypass URL host restrictions with crafted jar URLs. UtilXml.readXmlDocument validates the empty host of the outer jar wrapper, then opens the inner URL without checking its host against the configured allowlist. No authentication or user interaction is required; the public advisory does not identify the request entry point or a code-execution consequence.

The record

CVE
CVE-2026-31378
Published
May 19, 2026
Updated
May 19, 2026
Vendor
The Apache Software Foundation
Product
Apache OFBiz
Classifications
CWE-20, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 19, 2026CVE publishedPublication date reported by the CVE source.
  2. May 19, 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?

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  1. Affected versionversion=0 <24.09.06

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache OFBizversion=0 <24.09.06

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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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-20Improper Input Validation
T1190Exploit Public-Facing Application

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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