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CVE-2026-42826: Microsoft Azure Devops Information Exposure (CVSS 10)

CVE-2026-42826 is a critical severity information exposure in Microsoft Azure Devops with a CVSS score of 10. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Last updated: Jun 17, 2026

Quick answer

Direct answer

CVE-2026-42826 is a critical severity information exposure in Microsoft Azure Devops with a CVSS score of 10. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Risk scores

CVSS base score
10CRITICAL
EPSS probability
1.17%
Higher than 67 percent of all CVEs
CISA KEV
Not listed
CVSS metricWhat it means
Attack vector (AV:N)Network: reachable remotely
Attack complexity (AC:L)Low complexity
Privileges required (PR:N)No privileges required
User interaction (UI:N)No user interaction
Scope (S:C)Scope changed: impact spreads beyond the component
Confidentiality (C:H)High confidentiality impact
Integrity (I:H)High integrity impact
Availability (A:H)High availability impact

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

About Microsoft Azure Devops

CVE-2026-42826 affects Microsoft Azure Devops, a product from Microsoft. Before acting, confirm where Microsoft Azure Devops runs in your estate, who owns it and whether it is reachable from the internet, because exposure decides real risk more than the score alone.

What the flaw is

In plain terms: Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose information over a network.

The weakness class is Information Exposure. Sensitive information is shown to someone who should not see it.

Based on its CVSS vector, the flaw can be reached over the network, needs no login, and needs no user interaction. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Affected versions and timeline

FieldDetail
ProductMicrosoft Azure Devops
Affected versionsAzure Devops all listed versions
PublishedMay 7, 2026
Last modifiedJun 17, 2026
Added to CISA KEVNot listed
Assigning CNAsecure@microsoft.com

How to detect it

  • Inventory every instance of Microsoft Azure Devops and record the running version against the affected range above.
  • Check external attack surface scans for internet facing instances of the component.
  • Review logs on affected systems for unusual requests, errors or new processes around the vulnerable function.
  • Confirm with an authenticated vulnerability scan once your scanner has a check for this CVE.

How to fix it

  • Apply the fixed version of Microsoft Azure Devops named in the vendor advisory.
  • If patching must wait, restrict network access to the affected service and put it behind authentication or a web application firewall rule.
  • Rescan after the change to prove the exposure is gone, then close the ticket.

CTEM action plan

CTEM stageWhat to do for this CVE
ScopeAdd every business service that depends on Microsoft Azure Devops to the current CTEM cycle.
DiscoverFind all instances, including shadow and cloud deployments, and record versions and exposure.
PrioritizeRank using EPSS and CVSS together with asset exposure and business impact.
ValidateConfirm the flaw is reachable and exploitable in your environment and that compensating controls work.
MobilizeAssign the fix to the asset owner with a due date matched to the priority, then verify closure.

CWE References

Technical References

Frequently asked questions

CVE-2026-42826 is a critical severity information exposure in Microsoft Azure Devops with a CVSS score of 10. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

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