CVE-2026-21310Network attack vector

Unauthenticated security feature bypass

Published Mar 11, 2026 · Updated Mar 11, 2026

Improper input validation in Adobe Commerce 2.4.9-alpha3 and earlier allows remote attackers to bypass a security feature over the network. Adobe has not published the affected component, accepted input, or validation operation that permits the bypass. Exploitation requires no credentials or user interaction, and the reported consequence is limited to integrity.

CVSS severity5.3
Medium
EPSS probability0.30%
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 Adobe Commerce 2.4.9-alpha3 and earlier allows remote attackers to bypass a security feature over the network. Adobe has not published the affected component, accepted input, or validation operation that permits the bypass. Exploitation requires no credentials or user interaction, and the reported consequence is limited to integrity.

The record

CVE
CVE-2026-21310
Published
Mar 11, 2026
Updated
Mar 11, 2026
Vendor
Adobe
Product
Adobe Commerce
Classifications
CWE-20, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 11, 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=0 <=2.4.4-p16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Adobe · Adobe Commerceversion=0 <=2.4.4-p16

Published CVSS scores

5.3Adobe Systems IncorporatedCVSS: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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