CVE-2026-2655

ChaiScript chaiscript_defines.hpp operator use after free

LOW
2.5
CVSS Score
Published: February 18, 2026 at 02:02 PM UTC
Updated: June 17, 2026 at 10:31 AM UTC
1 product affected across 1 vendorChaiScript

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Severity
LOW2.5
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/?id.346453
SignaturePermissions RequiredThird Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?ctiid.346453
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.752788
Issue TrackingExploitVendor Advisory
Source: cverecord
https://github.com/ChaiScript/ChaiScript/issues/632
ExploitIssue TrackingVendor Advisory
Source: cverecord
https://github.com/ChaiScript/ChaiScript/issues/632#issue-3827824936

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2.5LOWVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-416CWE-119

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