Vulnerability Details CVE-2026-3408
A vulnerability was identified in Open Babel up to 3.1.1. This impacts the function OBAtom::GetExplicitValence of the file isrc/atom.cpp of the component CDXML File Handler. Such manipulation leads to null pointer dereference. The attack can be launched remotely. The exploit is publicly available and might be used. The name of the patch is e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a. It is best practice to apply a patch to resolve this issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 11.9%
CVSS Severity
CVSS v3 Score 4.3
CVSS v2 Score 5.0
References
- https://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a
- https://github.com/oneafter/0128/blob/main/ob3/repro.cdxml
- https://github.com/openbabel/openbabel/issues/2848
- https://github.com/openbabel/openbabel/pull/2862
- https://vuldb.com/?ctiid.348303
- https://vuldb.com/?id.348303
- https://vuldb.com/?submit.763756
Products affected by CVE-2026-3408
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cpe:2.3:a:openbabel:open_babel:2.0.0
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cpe:2.3:a:openbabel:open_babel:2.0.1
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cpe:2.3:a:openbabel:open_babel:2.0.2
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cpe:2.3:a:openbabel:open_babel:2.1.0
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cpe:2.3:a:openbabel:open_babel:2.1.1
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cpe:2.3:a:openbabel:open_babel:2.2.0
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cpe:2.3:a:openbabel:open_babel:2.2.1
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cpe:2.3:a:openbabel:open_babel:2.2.2
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cpe:2.3:a:openbabel:open_babel:2.2.3
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cpe:2.3:a:openbabel:open_babel:2.3.0
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cpe:2.3:a:openbabel:open_babel:2.3.1
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cpe:2.3:a:openbabel:open_babel:2.3.2
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cpe:2.3:a:openbabel:open_babel:2.4.0
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cpe:2.3:a:openbabel:open_babel:3.0.0
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cpe:2.3:a:openbabel:open_babel:3.1.0
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cpe:2.3:a:openbabel:open_babel:3.1.1