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CVE Vulnerability Details :
CVE-2026-2655
PUBLISHED
More InfoOfficial Page
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
View Known Exploited Vulnerability (KEV) details
Published At-18 Feb, 2026 | 14:02
Updated At-18 Feb, 2026 | 14:39
Rejected At-
▼CVE Numbering Authority (CNA)
ChaiScript chaiscript_defines.hpp operator use after free

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 Products
Vendor
n/a
Product
ChaiScript
Versions
Affected
  • 6.0
  • 6.1.0
Problem Types
TypeCWE IDDescription
CWECWE-416Use After Free
CWECWE-119Memory Corruption
Type: CWE
CWE ID: CWE-416
Description: Use After Free
Type: CWE
CWE ID: CWE-119
Description: Memory Corruption
Metrics
VersionBase scoreBase severityVector
4.02.0LOW
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.12.5LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
3.02.5LOW
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
2.01.0N/A
AV:L/AC:H/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR
Version: 4.0
Base score: 2.0
Base severity: LOW
Vector:
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Version: 3.1
Base score: 2.5
Base severity: LOW
Vector:
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
Version: 3.0
Base score: 2.5
Base severity: LOW
Vector:
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
Version: 2.0
Base score: 1.0
Base severity: N/A
Vector:
AV:L/AC:H/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

reporter
Oneafter (VulDB User)
Timeline
EventDate
Advisory disclosed2026-02-18 00:00:00
VulDB entry created2026-02-18 01:00:00
VulDB entry last update2026-02-18 07:48:29
Event: Advisory disclosed
Date: 2026-02-18 00:00:00
Event: VulDB entry created
Date: 2026-02-18 01:00:00
Event: VulDB entry last update
Date: 2026-02-18 07:48:29
Replaced By

Rejected Reason

References
HyperlinkResource
https://vuldb.com/?id.346453
vdb-entry
technical-description
https://vuldb.com/?ctiid.346453
signature
permissions-required
https://vuldb.com/?submit.752788
third-party-advisory
https://github.com/ChaiScript/ChaiScript/issues/632
issue-tracking
https://github.com/ChaiScript/ChaiScript/issues/632#issue-3827824936
exploit
issue-tracking
https://github.com/ChaiScript/ChaiScript/
product
Hyperlink: https://vuldb.com/?id.346453
Resource:
vdb-entry
technical-description
Hyperlink: https://vuldb.com/?ctiid.346453
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/?submit.752788
Resource:
third-party-advisory
Hyperlink: https://github.com/ChaiScript/ChaiScript/issues/632
Resource:
issue-tracking
Hyperlink: https://github.com/ChaiScript/ChaiScript/issues/632#issue-3827824936
Resource:
exploit
issue-tracking
Hyperlink: https://github.com/ChaiScript/ChaiScript/
Resource:
product
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/ChaiScript/ChaiScript/issues/632
exploit
Hyperlink: https://github.com/ChaiScript/ChaiScript/issues/632
Resource:
exploit
Details not found