CVE-2026-2656

low

Published 2026-02-18 · Modified 2026-04-29

CVSS v3

2.5

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS v2

1.0

VIR risk

2.5

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.

Predictions

Exploit likelihood

27%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: cna@vuldb.com — https://github.com/ChaiScript/ChaiScript/issues/636#issue-3828333582

vendor Authored 2026-05-27

Vendor advisory: cna@vuldb.com — https://github.com/ChaiScript/ChaiScript/issues/636

Application impact

Vendor	Product	Versions	Fixed
chaiscript	chaiscript	`{"endIncluding":"6.1.0"}`

References

CWEs

CWE-119 CWE-416

Verify integrity in audit chain (admin only). AS-IS.