CVE-2021-30128Known exploitationPublic exploitNetwork attack vector

Unauthenticated code execution via allowlist bypass

Published Apr 27, 2021 · Updated Aug 3, 2024

Unsafe deserialization in Apache OFBiz before 17.12.07 allows remote attackers to execute arbitrary code through the SOAP service endpoint. SafeObjectInputStream uses an unanchored allowlist match, so type names with appended generic markup pass filtering and load gadget classes. The unauthenticated SOAPService route accepts the crafted serialized object and executes the gadget chain in the server process.

CVSS severity9.8
Critical
EPSS probability81.21%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe deserialization in Apache OFBiz before 17.12.07 allows remote attackers to execute arbitrary code through the SOAP service endpoint. SafeObjectInputStream uses an unanchored allowlist match, so type names with appended generic markup pass filtering and load gadget classes. The unauthenticated SOAPService route accepts the crafted serialized object and executes the gadget chain in the server process.

The record

CVE
CVE-2021-30128
Published
Apr 27, 2021
Updated
Aug 3, 2024
Vendor
The Apache Software Foundation
Product
Apache OFBiz
Classifications
CWE-502, CAPEC-586, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 27, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.
  3. Jun 12, 2026Exploitation reportedPrevidian sensor exploitation telemetry

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=Apache OFBiz <17.12.07

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache OFBizversion=Apache OFBiz <17.12.07

Published CVSS scores

10.0NIST NVDAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CAPEC-586Object Injection
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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