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Description

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.

PUBLISHED Reserved 2026-02-18 | Published 2026-02-18 | Updated 2026-02-23 | Assigner VulDB




MEDIUM: 4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
LOW: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
LOW: 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
1.7AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

Problem types

Heap-based Buffer Overflow

Memory Corruption

Timeline

2026-02-18:Advisory disclosed
2026-02-18:VulDB entry created
2026-02-21:VulDB entry last update

Credits

Oneafter (VulDB User) reporter

References

vuldb.com/?id.346459 (VDB-346459 | Squirrel sqobject.h operator heap-based overflow) vdb-entry technical-description

vuldb.com/?ctiid.346459 (VDB-346459 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.753165 (Submit #753165 | albertodemichelis squirrel master-branch Heap-based Buffer Overflow) third-party-advisory

github.com/albertodemichelis/squirrel/issues/310 issue-tracking

github.com/oneafter/0122/blob/main/i310/repro exploit

cve.org (CVE-2026-2661)

nvd.nist.gov (CVE-2026-2661)

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