CVE-2026-2705

A vulnerability was detected in Open Babel up to 3.1.1. The impacted element is the function OBAtom::SetFormalCharge in the library include/openbabel/atom.h of the component MOL2 File Handler. The manipulation results in out-of-bounds read. It is possible to launch the attack remotely. The exploit is now public and may be used. The patch is identified as e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a. A patch should be applied to remediate this issue. The project was informed of the problem early through an issue report but has not responded yet.

• CWE-119
• CWE-125

• https://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a
• https://github.com/oneafter/0128/blob/main/ob2/repro.mol2Exploit
• https://github.com/openbabel/openbabel/issues/2848Exploit, Issue Tracking
• https://github.com/openbabel/openbabel/pull/2862
• https://vuldb.com/?ctiid.346651Permissions Required, VDB Entry
• https://vuldb.com/?id.346651Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.754379Third Party Advisory, VDB Entry

Published

Feb 19, 2026

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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