CVE-2026-41499

Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.0.0 to before version 4.14.4, multiple heap-based out-of-bounds WRITE vulnerabilities exist in parse_uname_string() (remoted_op.c). This function processes OS identification data from agents and contains a dangerous code pattern that appears in 4 locations within the same function: writing to strlen(ptr) - 1 without checking for empty strings. When the string is empty, strlen() returns 0, and 0 - 1 wraps to SIZE_MAX due to unsigned integer underflow. Due to pointer arithmetic wrapping, SIZE_MAX effectively becomes -1, causing a write exactly 1 byte before the allocated buffer. This corrupts heap metadata (e.g., the chunk size field in glibc malloc), leading to heap corruption. This issue has been patched in version 4.14.4.

• CWE-124
• CWE-191

• https://github.com/wazuh/wazuh/releases/tag/v4.14.4Release Notes
• https://github.com/wazuh/wazuh/security/advisories/GHSA-qvqj-p8mm-r7h3Vendor Advisory
• https://github.com/wazuh/wazuh/security/advisories/GHSA-qvqj-p8mm-r7h3Vendor Advisory

Published

Apr 29, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-41492Dgraph is an open source distributed GraphQL database. Prior…9.8
• CVE-2026-41493YARD is a Ruby Documentation tool. Prior to version 0.9.42, …7.5
• CVE-2026-41495n8n-MCP is an MCP server that provides AI assistants access …5.3
• CVE-2026-41496PraisonAI is a multi-agent teams system. Prior to praisonai …8.1
• CVE-2026-41497PraisonAI is a multi-agent teams system. Prior to version 4.…9.8
• CVE-2026-41498Kimai is an open-source time tracking application. Prior to …3.3
• CVE-2026-4150GIMP PSD File Parsing Integer Overflow Remote Code Execution…7.8
• CVE-2026-41500electerm is an open-sourced terminal/ssh/sftp/telnet/serialp…9.8
• CVE-2026-41501electerm is an open-sourced terminal/ssh/sftp/telnet/serialp…9.8
• CVE-2026-41502BACnet Stack is a BACnet open source protocol stack C librar…7.5
• CVE-2026-41503BACnet Stack is a BACnet open source protocol stack C librar…7.5
• CVE-2026-41505RELATE is a web-based courseware package. Prior to commit 2f…8.7