A flaw has been found in ChaiScript up to 6.1.0. This affects the function chaiscript::Type_Info::bare_equal of the file include/chaiscript/dispatchkit/type_info.hpp. This manipulation causes use after free. The attack requires local access. The attack's complexity is rated as high. The exploitability is reported as difficult. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
History

Wed, 18 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 18 Feb 2026 15:00:00 +0000

Type Values Removed Values Added
Description A flaw has been found in ChaiScript up to 6.1.0. This affects the function chaiscript::Type_Info::bare_equal of the file include/chaiscript/dispatchkit/type_info.hpp. This manipulation causes use after free. The attack requires local access. The attack's complexity is rated as high. The exploitability is reported as difficult. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Title ChaiScript type_info.hpp bare_equal use after free
Weaknesses CWE-119
CWE-416
References
Metrics cvssV2_0

{'score': 1, 'vector': 'AV:L/AC:H/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 2.5, 'vector': 'CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 2.5, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 2, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-02-18T14:32:07.335Z

Updated: 2026-02-18T15:11:04.454Z

Reserved: 2026-02-18T06:43:23.403Z

Link: CVE-2026-2656

cve-icon Vulnrichment

Updated: 2026-02-18T15:10:59.583Z

cve-icon NVD

Status : Received

Published: 2026-02-18T15:18:44.743

Modified: 2026-02-18T15:18:44.743

Link: CVE-2026-2656

cve-icon Redhat

No data.