IBM i ILE Compiler Recursion DoS Before 7.6 (7.5,7.4,7.3)
CVE-2026-6936 Published on May 27, 2026
IBM i is Affected by a Denial of Service Vulnerability []
IBM i 7.6, 7.5, 7.4, and 7.3 s vulnerable to a denial-of-service attack due to uncontrolled recursion in the Integrated Language Environment (ILE) compiler. An authenticated attacker could exploit this vulnerability by compiling specially crafted source code containing a specific combination of statements.
Vulnerability Analysis
CVE-2026-6936 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Stack Exhaustion Vulnerability?
The product does not properly control the amount of recursion which takes place, consuming excessive resources, such as allocated memory or the program stack.
CVE-2026-6936 has been classified to as a Stack Exhaustion vulnerability or weakness.
Products Associated with CVE-2026-6936
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Affected Versions
IBM i:- Version 7.6, <= 11.5.9 is affected.
- Version 7.5, <= 12.1.4 is affected.
- Version 7.4 is affected.
- Version 7.3 is affected.