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CVE-2026-8261

Squirrel sqobject.cpp Load heap-based overflow

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 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Vendors
Albertodemichelis
Products
Squirrel
CVE-2026-8258

Squirrel sqstdstring.cpp validate_format stack-based overflow

A flaw has been found in Squirrel up to 3.2. Impacted is the function validate_format in the library sqstdlib/sqstdstring.cpp. Executing a manipulation can lead to stack-based buffer overflow. The attack can only be executed locally. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Vendors
Albertodemichelis
Products
Squirrel
CVE-2026-2659

Squirrel sqfuncstate.cpp PopTarget out-of-bounds

A vulnerability was determined in Squirrel up to 3.2. Affected by this vulnerability is the function SQFuncState::PopTarget of the file src/squirrel/squirrel/sqfuncstate.cpp. Executing a manipulation of the argument _target_stack can lead to out-of-bounds read. It is possible to launch the attack on the local host. 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 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Vendors
Albertodemichelis Squirrel-lang
Products
Squirrel Squirrel
CVE-2026-2661

Squirrel sqobject.h operator heap-based overflow

A security flaw has been discovered in Squirrel up to 3.2. This affects the function SQObjectPtr::operator in the library squirrel/sqobject.h. The manipulation results in heap-based buffer overflow. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Vendors
Albertodemichelis Squirrel-lang
Products
Squirrel Squirrel
CVE-2026-3388

Squirrel sqcompiler.cpp UnaryOP recursion

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 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Vendors
Albertodemichelis Squirrel-lang
Products
Squirrel Squirrel
CVE-2026-3389

Squirrel sqstdrex.cpp sqstd_rex_newnode null pointer dereference

A vulnerability was determined in Squirrel up to 3.2. This vulnerability affects the function sqstd_rex_newnode in the library sqstdlib/sqstdrex.cpp. Executing a manipulation can lead to null pointer dereference. The attack can only be executed locally. 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 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Vendors
Albertodemichelis Squirrel-lang
Products
Squirrel Squirrel