importantSYS.SOURCE: The Hacker News• 2026-09-16T10:48:06+05:30

Critical JWT Bypass Vulnerability in WSO2 API Manager Under Active Exploitation

#jwt #api security #vulnerability #exploitation #cybersecurity

A critical JWT authentication vulnerability (CVE-2026-5430) in WSO2 API Manager allows attackers to bypass security checks using forged admin tokens, enabling unauthorized access and potential account takeover. Users are urged to apply available patches immediately to mitigate active exploitation attempts.

A critical security flaw in WSO2 API Manager has come under active exploitation in the wild, according to findings from watchTowr.

The vulnerability, tracked as CVE-2026-5430 (CVSS score: 9.8/10.0), is a case of improper verification of a cryptographic signature that could result in account takeover. Hacktron Team has been credited with discovering and reporting the flaw.

"JWT authentication

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> PROGRAMMING FUNDAMENTALS IN THE ERA OF LARGE LANGUAGE MODELS > CYCLE-ACCURATE IBM PC/XT EMULATOR WITH DEBUGGING TOOLS AND HARDWARE RESEARCH > CRITICAL WOOCOMMERCE PLUGIN VULNERABILITY EXPLOITED FOR PHP WEB SHELL DEPLOYMENT > REAL-TIME GPS MOVING MAP DISPLAY ON 25MHZ 486-SX EMBEDDED SYSTEM > CRITICAL JWT BYPASS VULNERABILITY IN WSO2 API MANAGER UNDER ACTIVE EXPLOITATION > DATAMIMIC: CONTROLLED SYNTHETIC TEST DATA GENERATION FOR REGULATED ENTERPRISES > NEGATIVLAND'S CULTURE JAMMING AND COPYRIGHT ADVOCACY IN MULTIMEDIA ART > BALANCING SEARCH VISIBILITY AND AI TRAINING RESTRICTIONS WITH CLOUDFLARE'S BOT MANAGEMENT > APPLE'S REFERENCE IMAGE TECHNOLOGY FOR SECURE PHOTOGRAPHIC VERIFICATION > NVIDIA CEO JENSEN HUANG ADVOCATES AGAINST AI REGULATION, EMPHASIZES INDUSTRY SELF-RESPONSIBILITY> PROGRAMMING FUNDAMENTALS IN THE ERA OF LARGE LANGUAGE MODELS > CYCLE-ACCURATE IBM PC/XT EMULATOR WITH DEBUGGING TOOLS AND HARDWARE RESEARCH > CRITICAL WOOCOMMERCE PLUGIN VULNERABILITY EXPLOITED FOR PHP WEB SHELL DEPLOYMENT > REAL-TIME GPS MOVING MAP DISPLAY ON 25MHZ 486-SX EMBEDDED SYSTEM > CRITICAL JWT BYPASS VULNERABILITY IN WSO2 API MANAGER UNDER ACTIVE EXPLOITATION > DATAMIMIC: CONTROLLED SYNTHETIC TEST DATA GENERATION FOR REGULATED ENTERPRISES > NEGATIVLAND'S CULTURE JAMMING AND COPYRIGHT ADVOCACY IN MULTIMEDIA ART > BALANCING SEARCH VISIBILITY AND AI TRAINING RESTRICTIONS WITH CLOUDFLARE'S BOT MANAGEMENT > APPLE'S REFERENCE IMAGE TECHNOLOGY FOR SECURE PHOTOGRAPHIC VERIFICATION > NVIDIA CEO JENSEN HUANG ADVOCATES AGAINST AI REGULATION, EMPHASIZES INDUSTRY SELF-RESPONSIBILITY