CVE-2026-26135 | BDVDB-2026-324352 Detail

MicrosoftAzure Custom Locations Resource Provider

Description#

Server-side request forgery (ssrf) in Azure Custom Locations Resource Provider (RP) allows an authorized attacker to elevate privileges over a network.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact none. Attack vector: network.

Weaknesses#

CWE-918 Server-Side Request Forgery (SSRF)

References#

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26135

Exploit#

No public exploit known

History#

Version 12026-04-02Record published in the CVE List.
Version 22026-10-15Most recent update recorded in the CVE List.

Published

Published: 2026-04-02
Last modified: 2026-10-15

Vendor information

Vendor: Microsoft
Product: Azure Custom Locations Resource Provider

All Microsoft vulnerabilities

Score

9.6 Critical

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 49.3.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Server-Side Request Forgery

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

No version data in the source record.

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.6 Critical

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Changed
Confidentiality	High
Integrity	High
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).