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CVE-2026-69877 Microsoft CVE debrief

An origin validation error in Azure DevOps allows an unauthorized attacker to disclose information over a network. This vulnerability affects Azure CLI and Azure DevOps CLI Extension. Microsoft has released an advisory for this vulnerability. The vulnerability has been identified in Azure CLI versions less than 1.0.7 and Azure DevOps CLI Extension versions less than 1.0.7. Defenders should assess exposure and apply patches or mitigations as recommended by Microsoft. The CVE record and Microsoft advisory provide details on the vulnerability.

Vendor
Microsoft
Product
Azure CLI
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-13
Original CVE updated
2026-10-13
Advisory published
2026-10-13
Advisory updated
2026-10-13

Who should care

Defenders responsible for Azure DevOps and Azure CLI deployments should assess exposure and apply patches or mitigations as recommended by Microsoft.

Why it matters

This vulnerability allows an unauthorized attacker to disclose information over a network, affecting Azure CLI and Azure DevOps CLI Extension. Defenders should prioritize verifying exposure and applying patches or mitigations.

  • Verify exposure of Azure CLI and Azure DevOps CLI Extension in your environment
  • Apply patches or mitigations as recommended by Microsoft
  • Monitor for potential information disclosure attempts

Technical summary

An origin validation error in Azure DevOps allows an unauthorized attacker to disclose information over a network. This vulnerability affects Azure CLI versions less than 1.0.7 and Azure DevOps CLI Extension versions less than 1.0.7. The vulnerability has been identified in Azure CLI and Azure DevOps CLI Extension. Microsoft has released an advisory for this vulnerability.

Defensive priority

Defenders should prioritize verifying exposure of Azure CLI and Azure DevOps CLI Extension in their environments and apply patches or mitigations as recommended by Microsoft.

Recommended defensive actions

  • Verify exposure of Azure CLI and Azure DevOps CLI Extension in your environment
  • Apply patches or mitigations as recommended by Microsoft
  • Monitor for potential information disclosure attempts

Evidence notes

The CVE record and Microsoft advisory provide details on the vulnerability. However, additional information on exploitation or impact is limited. The source item provides a brief description of the vulnerability. Further verification is needed to confirm affected deployments and assess potential impact. The official CVE Program record and NIST NVD detail page offer additional context.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-69877 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-69877

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-69877 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-69877

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Azure DevOps Information Disclosure Vulnerability

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/69xxx/CVE-2026-69877.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69877

    Supplemental source - vendor-advisory, patch

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.