CVE-2021-38910Network attack vector

Security restriction bypass via JSON injection

Published Mar 10, 2022 · Updated Sep 16, 2024

Improper input validation in IBM DataPower Gateway 10.0.1 and 2108.4.1 allows remote attackers to bypass security restrictions via crafted JSON. The DataPower REST API reflects client-supplied JSON without adequate validation, allowing structure and fields in processed messages to be modified. The attack is unauthenticated and network reachable; the documented consequence is limited integrity impact, with no stated confidentiality or availability effect.

CVSS severity3.7
Low
EPSS probability1.12%
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 IBM DataPower Gateway 10.0.1 and 2108.4.1 allows remote attackers to bypass security restrictions via crafted JSON. The DataPower REST API reflects client-supplied JSON without adequate validation, allowing structure and fields in processed messages to be modified. The attack is unauthenticated and network reachable; the documented consequence is limited integrity impact, with no stated confidentiality or availability effect.

The record

CVE
CVE-2021-38910
Published
Mar 10, 2022
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM DataPower Gateway
Classifications
CWE-20, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 10, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record 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=10.0.1.0
  2. Affected versionversion=10.0.1.5
  3. Affected versionversion=10.0.2.0
  4. Affected versionversion=10.0.3.0
  5. Affected versionversion=2018.4.1.0
  6. Affected versionversion=2108.4.1.18

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM DataPower Gatewayversion=10.0.1.0; version=10.0.1.5; version=10.0.2.0; version=10.0.3.0; version=2018.4.1.0; version=2108.4.1.18

Published CVSS scores

3.7IBMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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.

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

Technologies

Your stack

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Your stack

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