CVE-2026-56451

CRITICAL10.0

Published 2026-07-14 · Source productcert@siemens.com

Description

A vulnerability has been identified in Opcenter X (All versions < V2604). Affected applications do not properly validate the algorithm specified in the JSON Web Token (JWT) header. This could allow an unauthenticated remote attacker to forge arbitrary JWT, bypass authentication mechanisms and impersonate any user including administrative accounts, potentially gaining full unauthorized access to the application.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CWE-347

References

https://cert-portal.siemens.com/productcert/html/ssa-096828.html

View on NVD

Related CVEs

Same severity, most recent

CVE-2026-62422
In JetBrains YouTrack before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429 authentication bypass via direct database access leading to administrative access was possible
2026-07-14 · score 10.0
CVE-2026-3014
Milestone has released a new version of XProtect® (and several cumulative patch updates) which fix security vulnerability in Management Server API. The vulnerability causes users with edit permissions to the Management Server to be able to execute arbitrary code in context of the Management Server Service.
2026-07-14 · score 9.1
CVE-2026-57898
In Eclipse BaSyx Java Server SDK versions 2.0.0-milestone-05 to 2.0.0-milestone-12, deployments using the MongoDB backend are vulnerable to an unauthenticated arbitrary file write through the AAS thumbnail API. The AAS thumbnail upload path accepted a client-controlled fileName request parameter and passed it through repository file handling as both a repository key and, during thumbnail retrieval, a local filesystem path. With the MongoDB file repository, the supplied filename was treated as an opaque GridFS key and was not normalized or restricted as a filesystem path. A remote attacker could upload thumbnail content using an absolute or traversal-style filename, then trigger thumbnail retrieval so that the uploaded bytes were written to the attacker-chosen path on the server filesystem. This could allow writing files anywhere the Java process has permission to write and may lead to remote code execution. The default InMemory backend is not affected by this specific path because it normalizes and restricts file paths to its temporary directory. The issue is fixed in Eclipse BaSyx Java Server SDK 2.0.0-milestone-13.
2026-07-14 · score 9.0
CVE-2026-44761
SAP Commerce Cloud could retain a sample OAuth2 client with publicly documented sample credentials originating from sample configuration provided in SAP Help Portal documentation. If left unchanged, an unauthenticated attacker could use these well-known credentials to obtain a valid access token and invoke certain APIs to read and modify data. Successful exploitation results in high impact on confidentiality and integrity, with no impact on availability.
2026-07-14 · score 9.1
CVE-2026-44747
SAP NetWeaver Application Server ABAP allows an authenticated attacker to leverage logical errors in memory management to cause a memory corruption that could lead to unauthorized data access, modification, or system unavailability. This has high impact on confidentiality, integrity, and availability of the application.
2026-07-14 · score 9.9