CVE-2026-12382
HighCVSS 8.2Exploitation Probability (EPSS)
Low risk30th percentile - higher than 30% of all known CVEs
Summary
A flaw in the AAP Gateway Envoy proxy configuration fails to remove the Subject HTTP header from client requests in non-mTLS routes to EDA event streams, despite the source code defining its removal. An unauthenticated remote attacker can inject a spoofed Subject header matching a legitimate client certificate DN to bypass mTLS authentication and inject arbitrary events into protected EDA event streams.
Risk Assessment
The organization is at risk of unauthorized access to protected EDA event streams, enabling injection of fake events, data integrity compromise, and potential escalation of attacks on systems managed by AAP.
Recommendation
Immediately update AAP Gateway to a version containing the fix that removes the Subject header in non-mTLS routes and verify the Envoy proxy configuration for other potentially unremoved headers.
Related vulnerabilities
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SAP NetWeaver Application Server ABAP and ABAP Platform do not perform necessary authorization checks for certain internal functionality. An attacker with low privileges could invoke the affected functionality to execute arbitrary operating system commands on the underlying host.
- CVE-2026-76964Critical
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GV-Face transmits sensitive user credentials and related authentication data over unencrypted HTTP connections. The HTTP traffic is not encrypted, allowing an attacker to intercept it.
- CVE-2026-120017Critical
SAP NetWeaver AS ABAP and ABAP Platform do not sufficiently verify incoming authentication assertions under certain configurations. An unauthenticated attacker could submit crafted data to bypass authentication and impersonate arbitrary users, including privileged accounts.
- CVE-2026-109803Critical
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- CVE-2026-109798Critical
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Original NVD description (English source)
A flaw was found in the AAP Gateway Envoy proxy configuration. The non-mTLS route to EDA event streams does not remove the Subject HTTP header from client requests, despite the source code defining requestHeadersToRemove for this header. An unauthenticated remote attacker can inject a spoofed Subject header matching a legitimate client certificate DN to bypass mTLS authentication and inject arbitrary events into protected EDA event streams.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS