CVE-2026-42826Network attack vector

Unauthenticated information disclosure via undisclosed mechanism

Published May 7, 2026 · Updated May 7, 2026

Information exposure in Microsoft Azure DevOps allows remote attackers to disclose sensitive information over a network without authentication. Microsoft has not published the affected service component, request path, exposed data, or the operation that mishandles it. The service is exclusively hosted, and the public record identifies no tenant configuration or user interaction required for exposure.

CVSS severity10.0
Critical
EPSS probability0.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in Microsoft Azure DevOps allows remote attackers to disclose sensitive information over a network without authentication. Microsoft has not published the affected service component, request path, exposed data, or the operation that mishandles it. The service is exclusively hosted, and the public record identifies no tenant configuration or user interaction required for exposure.

The record

CVE
CVE-2026-42826
Published
May 7, 2026
Updated
May 7, 2026
Vendor
Microsoft
Product
Azure DevOps
Classifications
CWE-200
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 7, 2026CVE publishedPublication date reported by the CVE source.
  2. May 7, 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=-

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Azure DevOpsversion=-

Published CVSS scores

10.0Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

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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