Medium severity · published Mar 1, 2026
CVE-2026-3388
Squirrel sqcompiler.cpp UnaryOP recursion
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
A vulnerability was found in Squirrel up to 3.2. This affects the function SQCompiler::Factor/SQCompiler::UnaryOP of the file squirrel/sqcompiler.cpp. Performing a manipulation results in uncontrolled recursion. The attack needs to be approached locally. The exploit has been made public and could be used. 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:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% 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, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-3388
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-3388
Exploit
https://github.com/albertodemichelis/squirrel/issues/312
Exploit
https://github.com/oneafter/0122/blob/main/i312/repro
Permissions Required
https://vuldb.com/?ctiid.348274
Third Party Advisory
https://vuldb.com/?id.348274
Third Party Advisory
https://vuldb.com/?submit.761314
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