CVE intelligence and bounded remediation

CVE-2022-22536 — SAP Multiple Products HTTP Request Smuggling Vulnerability

Critical CVSS 10 CISA KEV

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.

Severity
Critical
CVSS
10 (3.1)
Published
2022-02-09
CISA KEV
Known exploited
Ecosystem
java/maven
Weaknesses
CWE-444

Affected products

  • 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

Showing 6 representative product identities from 26 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

HTTP request smuggling and message-boundary ambiguity

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Check exposure

  • Inventory every proxy, CDN, gateway, load balancer, service mesh, and application server hop on affected request paths.
  • Compare documented parsing and normalization behavior for message length, transfer coding, duplicate headers, and protocol translation.
  • Identify connection reuse and which downstream services trust headers added by intermediaries.

Remediate safely

  • Update affected intermediaries and origin servers and align them on a single standards-compliant request framing policy.
  • Reject ambiguous length, transfer-coding, duplicate, malformed, and unsupported framing before forwarding.
  • Normalize or remove hop-by-hop and identity headers at one controlled boundary and add multi-hop regression tests.

Authoritative sources

Complete CVE record and remediation plan

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