CVE-2026-26135 | Microsoft Azure Custom Locations Resource Provider server-side request forgery

VDB-355051 · CVE-2026-26135 · GCVE-0-2026-26135 MICROSOFT AZURE CUSTOM LOCATIONS RESOURCE PROVIDER SERVER-SIDE REQUEST FORGERY HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.9 $5k-$25k 1.74+ Summaryinfo A vulnerability marked as critical has been reported in Microsoft Azure Custom Locations Resource Provider. This issue affects some unknown processing. This manipulation causes server-side request forgery. This vulnerability is handled as CVE-2026-26135. The attack can be initiated remotely. There is not any exploit available. This product is a managed service, so users do not have direct control over vulnerability countermeasures. Detailsinfo A vulnerability classified as critical was found in Microsoft Azure Custom Locations Resource Provider (the affected version is unknown). Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is: Server-side request forgery (ssrf) in Azure Custom Locations Resource Provider (RP) allows an authorized attacker to elevate privileges over a network. It is possible to read the advisory at msrc.microsoft.com. This vulnerability is known as CVE-2026-26135 since 02/11/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/03/2026). This product is available as a managed service. Users are not able to maintain vulnerability countermeasures themselves. Productinfo Type Cloud Software Vendor Microsoft Name Azure Custom Locations Resource Provider License commercial Managed Service yes Website Vendor: https://www.microsoft.com/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 7.9 VulDB Meta Temp Score: 7.9 VulDB Base Score: 6.3 VulDB Temp Score: 6.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 9.6 CNA Vector (microsoft): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Server-side request forgery CWE: CWE-918 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Status: 🔍 0-Day Time: 🔒 Timelineinfo 02/11/2026 CVE reserved 04/03/2026 +50 days Advisory disclosed 04/03/2026 +0 days VulDB entry created 04/03/2026 +0 days VulDB entry last update Sourcesinfo Vendor: microsoft.com Advisory: msrc.microsoft.com Status: Confirmed CVE: CVE-2026-26135 (🔒) GCVE (CVE): GCVE-0-2026-26135 GCVE (VulDB): GCVE-100-355051 Entryinfo Created: 04/03/2026 02:53 Changes: 04/03/2026 02:53 (62) Complete: 🔍 Cache ID: 99:DAC:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸