CVE-2022-22536

CRITICAL KEV NUCLEI

SAP Content Server 7.53 - Unauthenticated HTTP Request Smuggling

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2022-22536 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added August 18, 2022. EIP tracks 8 public exploits from researchers including C41Tx90, ZZ-SOCMAP, tess-ss. A Nuclei detection template is also available.

AI-analyzed exploit summary This exploit demonstrates HTTP request smuggling (CVE-2022-22536) in SAP NetWeaver by crafting a malicious request with a mismatched Content-Length header to bypass ACLs and access internal endpoints. It includes a Python script to automate the attack and test multiple paths for vulnerability.

Description

SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP Platform, SAP Content Server 7.53 and SAP Web Dispatcher are vulnerable for request smuggling and request concatenation. An unauthenticated attacker can prepend a victim's request with arbitrary data. This way, the attacker can execute functions impersonating the victim or poison intermediary Web caches. A successful attack could result in complete compromise of Confidentiality, Integrity and Availability of the system.

Exploits (8)

exploitdb WORKING POC
by C41Tx90 · textremotemultiple
https://www.exploit-db.com/exploits/52109

This exploit demonstrates HTTP request smuggling (CVE-2022-22536) in SAP NetWeaver by crafting a malicious request with a mismatched Content-Length header to bypass ACLs and access internal endpoints. It includes a Python script to automate the attack and test multiple paths for vulnerability.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: SAP NetWeaver Application Server ABAP/Java, ABAP Platform, SAP Content Server 7.53, SAP Web Dispatcher
No auth needed
Prerequisites: Network access to the SAP NetWeaver server · SAP NetWeaver with vulnerable configuration
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 51 stars
by ZZ-SOCMAP · poc
https://github.com/ZZ-SOCMAP/CVE-2022-22536

This PoC exploits CVE-2022-22536, a DoS vulnerability in SAP Internet Communication Manager (ICM) via a crafted HTTP request with excessive padding. It checks for vulnerability by sending a malformed request and analyzing the response count and status codes.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: SAP Internet Communication Manager (ICM)
No auth needed
Prerequisites: Network access to the target SAP ICM server
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 10 stars
by tess-ss · poc
https://github.com/tess-ss/SAP-memory-pipes-desynchronization-vulnerability-MPI-CVE-2022-22536

This repository provides a proof-of-concept for CVE-2022-22536, a request smuggling vulnerability in SAP NetWeaver and related products. The exploit leverages HTTP desynchronization to poison intermediary caches, potentially leading to credential theft or unauthorized actions.

Classification
Working Poc 90%
Attack Type
Other
Complexity
Moderate
Reliability
Reliable
Target: SAP NetWeaver Application Server ABAP/Java, ABAP Platform, SAP Content Server 7.53, SAP Web Dispatcher
No auth needed
Prerequisites: Network access to the target SAP system · Intermediary proxy vulnerable to desynchronization
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 1 stars
by BecodoExploit-mrCAT · infoleak
https://github.com/BecodoExploit-mrCAT/SAPGateBreaker-Exploit

This repository contains a functional Python-based proof-of-concept exploit for CVE-2022-22536, demonstrating HTTP request smuggling in SAP NetWeaver Application Server. The exploit leverages Content-Length manipulation to bypass access controls and access internal endpoints.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: SAP NetWeaver Application Server ABAP/Java, ABAP Platform, SAP Content Server 7.53, SAP Web Dispatcher
No auth needed
Prerequisites: Network access to the target SAP NetWeaver instance · Knowledge of internal SAP endpoints to target
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec SCANNER
by abrewer251 · infoleak
https://github.com/abrewer251/CVE-2022-22536_SAP_Request_Smuggling_Scanner

This repository contains a Python-based scanner for CVE-2022-22536, a critical request smuggling vulnerability in SAP Internet Communication Manager (ICM) and SAP Web Dispatcher. The scanner tests multiple hosts in parallel for protocol desynchronization behavior by sending crafted HTTP requests and analyzing responses.

Classification
Scanner 95%
Attack Type
Other
Complexity
Moderate
Reliability
Reliable
Target: SAP Internet Communication Manager (ICM) and SAP Web Dispatcher
No auth needed
Prerequisites: List of target IPs/ports · Network access to target systems
devstral-2 · analyzed Feb 16, 2026 Full analysis →
inthewild WRITEUP
poc
https://github.com/tes5hacks/sap-memory-pipes-desynchronization-vulnerability-mpi-cve-2022-22536

The repository provides a detailed technical explanation of CVE-2022-22536, a request smuggling vulnerability in SAP NetWeaver and related components. It includes a proof-of-concept HTTP request demonstrating the desynchronization attack but lacks functional exploit code.

Classification
Writeup 90%
Attack Type
Other
Complexity
Moderate
Reliability
Theoretical
Target: SAP NetWeaver Application Server ABAP/Java, ABAP Platform, SAP Content Server 7.53, SAP Web Dispatcher
No auth needed
Prerequisites: network access to vulnerable SAP server · intermediary proxy vulnerable to desynchronization
devstral-2 · analyzed Feb 23, 2026 Full analysis →
inthewild WORKING POC
poc
https://github.com/asurti6783/sap-memory-pipes-desynchronization-vulnerability-mpi-cve-2022-22536

This repository provides a functional proof-of-concept for CVE-2022-22536, demonstrating request smuggling and cache poisoning in SAP NetWeaver via desynchronization of memory pipes. The PoC includes a crafted HTTP request with a large Content-Length header to exploit the vulnerability.

Classification
Working Poc 90%
Attack Type
Other
Complexity
Moderate
Reliability
Reliable
Target: SAP NetWeaver Application Server ABAP/Java, ABAP Platform, SAP Content Server 7.53, SAP Web Dispatcher
No auth needed
Prerequisites: Access to the target SAP server · Ability to send crafted HTTP requests
devstral-2 · analyzed Feb 23, 2026 Full analysis →
inthewild WORKING POC
poc
https://github.com/antx-code/cve-2022-22536

This repository contains a functional PoC for CVE-2022-22536, a vulnerability in SAP NetWeaver AS JAVA (LM Configuration Wizard). The exploit crafts a malformed HTTP request with excessive padding to trigger a DoS condition by causing the server to respond with multiple HTTP responses.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: SAP NetWeaver AS JAVA (LM Configuration Wizard) versions 7.30, 7.31, 7.40, 7.50
No auth needed
Prerequisites: Network access to the target SAP server · Target server must be running a vulnerable version of SAP NetWeaver AS JAVA
devstral-2 · analyzed Feb 23, 2026 Full analysis →

Nuclei Templates (1)

SAP Memory Pipes (MPI) Desynchronization
CRITICALby pdteam
Shodan: http.favicon.hash:-266008933
FOFA: icon_hash=-266008933

References (3)

Core 3
Core References
Permissions Required x_refsource_misc
https://launchpad.support.sap.com/#/notes/3123396
Broken Link, Not Applicable, Vendor Advisory x_refsource_misc
https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html

Scores

CVSS v3 10.0
EPSS 0.9383
EPSS Percentile 99.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation active
Automatable yes
Technical Impact total

Details

CISA KEV 2022-08-18
VulnCheck KEV 2022-08-18
InTheWild.io 2022-08-18
ENISA EUVD EUVD-2022-27682
CWE
CWE-444
Status published
Products (26)
sap/content_server 7.53
sap/netweaver_application_server_abap 7.22
sap/netweaver_application_server_abap 7.49
sap/netweaver_application_server_abap 7.53
sap/netweaver_application_server_abap 7.77
sap/netweaver_application_server_abap 7.81
sap/netweaver_application_server_abap 7.85
sap/netweaver_application_server_abap 7.86
sap/netweaver_application_server_abap 7.87
sap/netweaver_application_server_abap 8.04
... and 16 more
Published Feb 09, 2022
KEV Added Aug 18, 2022
Tracked Since Feb 18, 2026