8.6 CVE-2026-26139
Server-side request forgery (ssrf) in Microsoft Purview allows an unauthorized attacker to elevate privileges over a network.
https://nvd.nist.gov/vuln/detail/CVE-2026-26139
Categories
CWE-918 : Server-Side Request Forgery (SSRF)
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. Cross Site Port Attack Server-Side Request Forgery Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.) SSRF in LLM application development framework because the URL retriever allows connections to local addresses using a crafted Location header Chain: LLM integration framework has prompt injection(CWE-1427) that allows an attacker to force the service to retrievedata from an arbitrary URL, essentially providing SSRF (CWE-918) andpotentially injecting content into downstream tasks. Server Side Request Forgery (SSRF) in mail server, as exploited in the wild per CISA KEV. Server Side Request Forgery in cloud platform, as exploited in the wild per CISA KEV. Chain: incorrect validation of intended decimal-based IP address format (CWE-1286) enables parsing of octal or hexadecimal formats (CWE-1389), allowing bypass of an SSRF protection mechanism (CWE-918). Web server allows attackers to request a URL from another server, including other ports, which allows proxied scanning. CGI script accepts and retrieves incoming URLs. Web-based mail program allows internal network scanning using a modified POP3 port number. URL-downloading library automatically follows redirects to file:// and scp:// URLs
References
AFFECTED (from MITRE)
| Vendor |
Product |
Versions |
| Microsoft |
Microsoft Purview |
|
| © 2022 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. |
CPE
| cpe |
start |
end |
| Configuration 1 |
| cpe:2.3:a:microsoft:office_purview:*:*:*:*:*:*:*:* |
>= - |
|
REMEDIATION
EXPLOITS
Exploit-db.com
| id |
description |
date |
|
| No known exploits |
POC Github
Other Nist (github, ...)
CAPEC
Common Attack Pattern Enumerations and Classifications
| id |
description |
severity |
| 664 |
Server Side Request Forgery
[Find target application] Find target web application that accepts a user input and retrieves data from the server [Examine existing application requests] Examine HTTP/GET requests to view the URL query format. Adversaries test to see if this type of attack is possible through weaknesses in an application's protection to Server Side Request Forgery [Malicious request] Adversary crafts a malicious URL request that assumes the privilege level of the server to query internal or external network services and sends the request to the application |
High |
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