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.
References (6)
Core 6
Core References
Permissions Required, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.346453
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.346453
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.752788
Issue Tracking issue-tracking
https://github.com/ChaiScript/ChaiScript/issues/632
Issue Tracking exploit
issue-tracking
https://github.com/ChaiScript/ChaiScript/issues/632#issue-3827824936
Scores
CVSS v3
2.5
EPSS
0.0001
EPSS Percentile
2.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-119
CWE-416
Status
published
Products (1)
chaiscript/chaiscript
< 6.1.0
Published
Feb 18, 2026
Tracked Since
Feb 18, 2026