Use After Free Affecting chaiscript package, versions [0,]


Severity

Recommended
0.0
low
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.19% (9th percentile)

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  • Snyk IDSNYK-CONAN-CHAISCRIPT-15338120
  • published24 Feb 2026
  • disclosed18 Feb 2026
  • creditOneafter

Introduced: 18 Feb 2026

CVE-2026-2655  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

There is no fixed version for chaiscript.

Overview

Affected versions of this package are vulnerable to Use After Free via the operator in the chaiscript::str_less function of the chaiscript_defines.hpp file. An attacker can cause a program crash or unexpected behavior by triggering use of memory after it has been freed through complex local manipulation.

References

CVSS Base Scores

version 4.0
version 3.1