CVE-2025-42873
MediumCVSS 5.9Exploitation Probability (EPSS)
Low risk30th percentile - higher than 30% of all known CVEs
Summary
SAPUI5 and OpenUI5 packages use outdated third-party libraries with known vulnerabilities. When markdown-it encounters special malformed input, it fails to terminate properly, resulting in an infinite loop. This denial of service causes high CPU usage and system unresponsiveness due to a blocked processing thread.
Risk Assessment
An attacker can send specially crafted input, causing system overload and application unavailability. High CPU usage may impact the performance of the entire environment.
Recommendation
Update SAPUI5/OpenUI5 libraries to versions containing fixes for markdown-it. Also restrict access to input-processing functions and monitor resource usage.
Related vulnerabilities
- CVE-2026-96207Critical
Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-94510Critical
Authorization bypass through user-controlled key in Microsoft Bookings allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-88131Critical
Deserialization of untrusted data in Microsoft Dataverse allows an unauthorized attacker to execute code over a network.
- CVE-2026-77900Critical
Missing authentication for a critical function in Azure App Service allows an unauthorized attacker to execute code over a network.
- CVE-2026-69435Critical
Missing authorization in Azure SRE Agent allows an authorized attacker to elevate privileges over a network.
- CVE-2026-84249Critical
IBM Guardium Data Protection 12.2 and 12.2.2 could allow a remote attacker to execute arbitrary management operations due to missing authentication for a critical function.
- CVE-2026-80381Critical
IBM Guardium Data Protection 12.0, 12.1, and 12.2 could allow a remote attacker to execute unauthorized SQL statements due to SQL injection.
- CVE-2026-75875Critical
IBM Guardium Data Protection 12.0, 12.1, and 12.2 could allow a remote attacker to execute arbitrary code due to path traversal.
- CVE-2026-107726Critical
Hazelcast prior to 5.4.5, 5.5.10, and 5.6.1 contains improper validation of data supplied by a malicious client able to connect to a cluster, allowing arbitrary reads from a cluster member's Java heap, off-heap data, and JVM process address space. The same flaw can crash cluster members and, in some Hazelcast Enterprise Edition configurations, corrupt memory with possible arbitrary code execution. This issue is fixed in versions 5.4.5, 5.5.10, 5.6.1, and 5.7.0.
- CVE-2026-107722Critical
fast-jwt from 6.2.0 until 6.3.0 can misclassify RSA public-key text as an HMAC secret when the key has non-whitespace content before its PEM header. In src/crypto.js, performDetectPublicKeyAlgorithms trims whitespace but publicKeyPemMatcher remains start-anchored, so comments, control characters, zero-width characters, or wrapper text can prevent PEM detection and reach the HMAC fallback. An attacker who knows the public key bytes can sign arbitrary HS256 claims with that public material when HS256 is inferred or allowed, resulting in authentication or authorization bypass. An asymmetric-only algorithm allowlist prevents the attack. This issue is fixed in version 6.3.0.
Original NVD description (English source)
SAPUI5 (and OpenUI5) packages use outdated 3rd party libraries with known security vulnerabilities. When markdown-it encounters special malformed input, it fails to terminate properly, resulting in an infinite loop. This Denial of Service via infinite loop causes high CPU usage and system unresponsiveness due to a blocked processing thread. This vulnerability has no impact on confidentiality or integrity but has a high impact on system availability.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

