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CVE-2026-2655 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:2.5 LOWVector:CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/ChaiScript/ChaiScript/issues/632	CISA-ADP	ExploitIssue TrackingVendor Advisory
https://github.com/ChaiScript/ChaiScript/	[email protected]	Product
https://github.com/ChaiScript/ChaiScript/issues/632	[email protected]	ExploitIssue TrackingVendor Advisory
https://github.com/ChaiScript/ChaiScript/issues/632#issue-3827824936	[email protected]	ExploitIssue TrackingVendor Advisory
https://vuldb.com/?ctiid.346453	[email protected]	Third Party AdvisoryVDB Entry
https://vuldb.com/?id.346453	[email protected]	Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.752788	[email protected]	Third Party AdvisoryVDB Entry

see all 7 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer	[email protected]
CWE-416	Use After Free	[email protected]

Affected Products

Product	Versions
chaiscript chaiscript	<= 6.1.0
CPE cpe:2.3:a:chaiscript:chaiscript:::::::: Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Apr 29, 2026	Data Remediation	[email protected]
Feb 19, 2026	Initial Analysis	[email protected]
Feb 18, 2026	CVE Modified	CISA-ADP
Feb 18, 2026	New CVE Received	[email protected]