EUVD-2026-81043
GHSA-h7r9-wrf2-gr7g
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network REST API, low complexity, requires a low-privilege account (PR:L); self-escalation to admin yields full C/I/A; scope unchanged as impact stays within the application's authorization domain.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
3DescriptionCVE.org
KnowStreaming through 3.4.1 fails to enforce role-based access control on REST API endpoints, allowing any authenticated user to access protected functionality. Attackers can call identity-management endpoints to create administrator accounts or grant themselves administrative privileges without proper authorization.
AnalysisAI
Missing authorization checks in DiDi KnowStreaming through 3.4.1 allow any authenticated user - regardless of assigned role - to reach protected REST API functionality, including identity-management endpoints that can create administrator accounts or elevate the caller's own privileges. Exploitation requires only a valid low-privilege login (PR:L) with network reach to the REST API; no admin role, user interaction, or non-default configuration is needed, which makes the flaw most dangerous in deployments where accounts are broadly provisioned or self-registration is enabled. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires a valid authenticated KnowStreaming account of any privilege level (PR:L) with network reach to the REST API - the interceptor (PermissionInterceptor.java) does not enforce role-based checks on protected endpoints, so no admin role, user interaction, or non-default configuration is needed beyond having a login. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuinely high-priority privilege-escalation flaw despite the absence of exploitation telemetry. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch version is identified at time of analysis - EUVD lists the affected range as all KnowStreaming releases through 3.4.1 - so remediation must be compensating until an upstream fix is published; track https://github.com/didi/KnowStreaming/issues/1263 and the project repository at https://github.com/didi/KnowStreaming for an interceptor fix, and see https://www.vulncheck.com/advisories/knowstreaming-through-3.4.1-missing-authorization-on-the-rest-api for further detail. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all KnowStreaming deployments, confirm which run version 3.4.1 or earlier, and immediately restrict network reach to the REST API to trusted management networks or an internal segment; disable self-registration if enabled and audit the current account list for unexpected or recently created administrators. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Oracle Java SE 7 Update 6 and earlier contains multiple sandbox bypass vulnerabilities via the ClassFinder and forName m
Remote code execution in IBM Sterling B2B Integrator, Sterling Integrator, and Tivoli Common Reporting allows unauthenti
Java Runtime Environment sandbox bypass via incorrect image channel verification in 2D component allows remote unauthent
Oracle Java SE JDK/JRE 7 and 6 Update 27 and earlier allows remote code execution with complete system compromise throug
JBoss Seam 2 in Red Hat JBoss EAP 4.3.0 fails to sanitize JBoss Expression Language inputs, allowing remote attackers to
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 update 4 and earlier, 6 up
Multiple vulnerabilities in Oracle Java 7 before Update 11 allow remote attackers to execute arbitrary code by (1) using
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 2 and earlier, 6 Up
The WLS Security component in Oracle WebLogic Server 10.3.6.0, 12.1.2.0, 12.1.3.0, and 12.2.1.0 allows remote attackers
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 7 and earlier allow
Remote unauthenticated attackers can execute arbitrary code on Adobe ColdFusion servers through Java deserialization fla
The ExceptionDelegator component in Apache Struts before 2.2.3.1 interprets parameter values as OGNL expressions during
Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today