LearnCTEM.com, Best CTEM Learning Platform
CVE Intelligence Hub

CVE-2026-45499: Microsoft Azure Openai Server Side Request Forgery (CVSS 9.9)

CVE-2026-45499 is a critical severity server side request forgery in Microsoft Azure Openai with a CVSS score of 9.9. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Last updated: Jul 7, 2026

Quick answer

Direct answer

CVE-2026-45499 is a critical severity server side request forgery in Microsoft Azure Openai with a CVSS score of 9.9. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Risk scores

CVSS base score
9.9CRITICAL
EPSS probability
0.78%
Higher than 55 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:L)Low 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:L/UI:N/S:C/C:H/I:H/A:H

About Microsoft Azure Openai

CVE-2026-45499 affects Microsoft Azure Openai, a product from Microsoft. Before acting, confirm where Microsoft Azure Openai 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: Server-side request forgery (ssrf) in Azure OpenAI allows an authorized attacker to elevate privileges over a network.

The weakness class is Server Side Request Forgery. The server can be made to send requests to internal or arbitrary systems.

Based on its CVSS vector, the flaw can be reached over the network, needs some level of access, 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 Openai
Affected versionsAzure Openai all listed versions
PublishedJul 2, 2026
Last modifiedJul 7, 2026
Added to CISA KEVNot listed
Assigning CNAsecure@microsoft.com

How to detect it

  • Inventory every instance of Microsoft Azure Openai 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 Openai 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 Openai 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-2026-45499 is a critical severity server side request forgery in Microsoft Azure Openai with a CVSS score of 9.9. Apply the vendor fix and confirm exposure on internet facing and business critical assets first.

Related CVEs

All Microsoft CVEs in 2026
Your next credential

Earn your free CTEM certification.

Learn to scope, prioritize, validate and mobilize fixes for CVEs like CVE-2026-45499 with a free CTEM certification.

Free to takePublicly verifiable

Beginner / Practitioner / Program Leader

Explore certifications