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SAP Integration Suite EUVDEUVD-2026-72578

| CVE-2026-76958 HIGH
Improper Restriction of XML External Entity Reference (CWE-611)
2026-09-08 sap GHSA-285j-wq4c-cm8x
8.5
CVSS 3.1 · Vendor: sap
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate with low-privilege SAP account
  2. Delivery
    Craft XML payload with malicious DOCTYPE and external entity
  3. Exploit
    Submit payload to Integration Suite XML-processing endpoint
  4. Execution
    Parser resolves external entity, reads target server file
  5. Persist
    File contents surface in log or monitoring output
  6. Impact
    Attacker retrieves sensitive data from logs

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A02:2025 - Security Misconfiguration
ASVS 5.0
V13 - Configuration XML external entity prevention
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires a valid SAP Integration Suite account with at least low-level privileges (PR:L) sufficient to submit XML documents to the affected internal components - anonymous unauthenticated access is not sufficient. The specific internal components that accept untrusted XML are not identified in the available description, so the precise API endpoint or feature name is unconfirmed. Attack complexity is low (AC:L), meaning no special timing, race conditions, or additional configurations are required beyond having credentials and network access to the Integration Suite endpoints. Exploitation is limited by the authentication requirement and by the fact that file reads are exposed indirectly through monitoring/logging channels rather than directly in API responses, which may complicate automated data extraction.

Impact

The CVSS vector (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L) captures the key risk accurately: network-reachable, no interaction, low complexity, but requiring at least a valid (low-privilege) account - meaning this is not exploitable by anonymous internet actors. The scope change (S:C) elevates severity meaningfully because the file-read impact escapes the integration component into the broader server environment. No KEV listing and no confirmed public exploit code exist at time of analysis, so opportunistic mass exploitation is not an immediate concern, though the low attack complexity means that any sufficiently motivated authenticated attacker could exploit this with minimal effort; even a mid-sized enterprise integration deployment should treat patching as a high priority within the standard patch cycle. EPSS data is not provided in the source intelligence, so exploitation probability cannot be quantified precisely.

Exploit ScenarioDerived

An authenticated SAP Integration Suite user (e.g., a developer or integration operator with API access) submits a crafted XML message containing a malicious DOCTYPE with an external entity pointing to a sensitive server file such as '/etc/shadow' or an internal credentials file. The Integration Suite XML parser resolves the entity, and the file content is embedded in an error message, log entry, or API response visible to the attacker, exposing server credentials or configuration secrets. No public exploit code is confirmed, but XXE is a well-understood attack class with abundant tooling.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 08, 2026

XML External Entity (XXE) injection in SAP Integration Suite allows low-privileged remote attackers to read arbitrary server-side files and trigger resource exhaustion via maliciously crafted XML payloads submitted to internal integration components. The vulnerability carries a scope-changed CVSS of 8.5 because the XML parser's external entity resolution crosses trust boundaries, exposing server filesystem contents through monitoring or logging channels. No public exploit code has been identified at time of analysis, but SAP has issued a Security Note (3792978) addressing the flaw.

RemediationAI

Apply the fix documented in SAP Security Note 3792978, accessible via https://me.sap.com/notes/3792978 and announced through the SAP Security Patch Day page (https://url.sap/sapsecuritypatchday). An exact patched version number is not specified in the available intelligence; administrators should consult the SAP Support Portal directly to identify the corrective package or transport for their specific Integration Suite release. As a compensating control pending patch application, restrict submission of XML payloads to trusted, validated sources only - for example, tighten API gateway policies to reject or sanitize inbound XML documents from external parties before they reach internal integration components. Network-layer egress filtering can reduce the exfiltration risk by blocking unexpected outbound connections that an XXE entity fetch might trigger, though this does not prevent local file reads exposed through logs.

Affected VersionsENISA

SAP Integration Suite B2BIntegrationFactoryCloudIntegrationTradingPartnerManagement 1.10.0
SAP Integration Suite CloudIntegrationTradingPartnerManagementV2 2.9.2

Affected Packages

euvd sap_integration_suite_b2bintegrationfactorycloudintegrationtradingpartnermanagement no fix
euvd sap_integration_suite_cloudintegrationtradingpartnermanagementv2 no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

SAP Integration Suite (CPE: cpe:2.3:a:sap_se:sap_integration_suite:*:*:*:*:*:*:*:*) is SAP's cloud-based integration-platform-as-a-service (iPaaS), processing XML-based message flows, API proxies, and B2B/EDI exchanges. CWE-611 (Improper Restriction of XML External Entity Reference) occurs when an XML parser resolves DOCTYPE-declared external entities without disabling the feature; in XXE attacks, an attacker crafts payloads such as '<!DOCTYPE foo [<!ENTITY xxe SYSTEM "file:///etc/passwd">]>' to cause the server to fetch and return local file contents. The CVSS Scope:Changed metric reflects that the XML processing component, once exploited, can reach outside its own trust boundary to the server's filesystem and potentially to internal network resources via SSRF-style entity fetches. The Low Availability impact corresponds to XML entity expansion ("billion laughs"-style) causing memory or CPU exhaustion without full denial of service.

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Severity by source

Vendor (sap) PRIMARY 8.5 HIGH
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
vuln.today AI 8.5 HIGH

Matches vendor vector: network-reachable, low complexity, low-privilege auth required, scope changes to read server files with no integrity impact.

3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:L/SC:L/SI:N/SA:N

Primary rating from Vendor (sap).

CVSS VectorVendor: sap

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
Low

DescriptionCVE.org

SAP Integration Suite does not sufficiently validate XML documents accepted from untrusted sources in certain internal components. An attacker with low privileges could submit specially crafted XML payloads containing malicious external entity declarations. Successful exploitation could allow the attacker to read sensitive file contents from the server and expose them through monitoring or logging output, resulting in a high impact on confidentiality. It could also lead to resource exhaustion, causing a low impact on availability. There is no impact on integrity.

Executive ViewAI

Why It Matters

SAP Integration Suite is vulnerable to XML External Entity (XXE) injection that enables authenticated, low-privileged users to extract sensitive server files and exhaust system resources. Organizations running SAP Integration Suite for internal process automation face exposure of configuration files, credentials, and integration metadata stored on affected servers. This vulnerability directly threatens data confidentiality and operational availability of mission-critical integration infrastructure.

Business Impact: High
Compensating Controls

Until vendor patch is released: disable or restrict XML external entity resolution in SAP Integration Suite configuration; implement strict input validation for all XML payloads; apply network segmentation to limit access to integration components; enable and monitor XML parsing error logs for XXE attack indicators; consider deploying a Web Application Firewall (WAF) with XXE detection rules if integration endpoints are internet-facing.

Threat Intelligence Overview

EPSS Score
0.2%
Top 87% exploitable
Prevalence
High
widely deployed enterprise iPaaS in large SAP ecosystems globally
Social Media
1
Sightings
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Partial

Priority Score

42
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +42
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

XML External Entity (XXE) attacks exploit XML parsers that process Document Type Definitions (DTDs) without proper restrictions.

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

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