CVE-2026-2705
Open Babel MOL2 File atom.h SetFormalCharge out-of-bounds
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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 | CWE-125 CWE-119 |
| Vendor | n/a |
| Product | open babel |
| Published | Feb 19, 2026 |
| Last Updated | Mar 3, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
n/a / Open Babel
3.1.0 3.1.1
References
vuldb.com: https://vuldb.com/?id.346651 vuldb.com: https://vuldb.com/?ctiid.346651 vuldb.com: https://vuldb.com/?submit.754379 github.com: https://github.com/openbabel/openbabel/issues/2848 github.com: https://github.com/openbabel/openbabel/pull/2862 github.com: https://github.com/oneafter/0128/blob/main/ob2/repro.mol2 github.com: https://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a
Credits
🔍 Oneafter (VulDB User)