CVE-2026-2655

A vulnerability was detected in ChaiScript up to 6.1.0. The impacted element is the function chaiscript::str_less::operator of the file include/chaiscript/chaiscript_defines.hpp. The manipulation results in use after free. The attack requires a local approach. The attack requires a high level of complexity. The exploitability is regarded as difficult. The exploit is now 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-416

• https://github.com/ChaiScript/ChaiScript/Product
• https://github.com/ChaiScript/ChaiScript/issues/632Exploit, Issue Tracking, Vendor Advisory
• https://github.com/ChaiScript/ChaiScript/issues/632#issue-3827824936Exploit, Issue Tracking, Vendor Advisory
• https://vuldb.com/?ctiid.346453Third Party Advisory, VDB Entry
• https://vuldb.com/?id.346453Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.752788Third Party Advisory, VDB Entry
• https://github.com/ChaiScript/ChaiScript/issues/632Exploit, Issue Tracking, Vendor Advisory

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.
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