CVE-2026-2657

A vulnerability has been found in wren-lang wren up to 0.4.0. This impacts the function printError of the file src/vm/wren_compiler.c of the component Error Message Handler. Such manipulation leads to stack-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

• CWE-119
• CWE-121

• https://github.com/oneafter/0122/blob/main/i1221/reproExploit
• https://github.com/wren-lang/wren/Product
• https://github.com/wren-lang/wren/issues/1221Exploit, Vendor Advisory
• https://vuldb.com/?ctiid.346455Third Party Advisory, VDB Entry
• https://vuldb.com/?id.346455Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.752791Third Party Advisory, VDB Entry

Published

Feb 18, 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.
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