Medium severity · published May 11, 2026
CVE-2026-8261
Squirrel sqobject.cpp Load heap-based overflow
5.9
CVSS
0.2%
EPSS
No
On KEV
Description
A vulnerability was determined in Squirrel up to 3.2. This affects the function SQFunctionProto::Load of the file squirrel/sqobject.cpp. This manipulation causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SQ
Squirrel ·
3.0; 3.1; 3.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8261
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8261
github.com
https://github.com/albertodemichelis/squirrel/issues/326
github.com
https://github.com/biniamf/pocs/tree/main/squirrel-sqobject-functionproto-load-intovf-lineinfos
vuldb.com
https://vuldb.com/submit/809904
vuldb.com
https://vuldb.com/vuln/362558
vuldb.com
https://vuldb.com/vuln/362558/cti
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