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CVE-2026-2705

MEDIUM

4.3

Description

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.

CVE Details

CVSS v3.1 Score4.3

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published2/19/2026

Last Modified3/1/2026

Sourcenvd

Honeypot Sightings0

Affected Products

openbabel:open_babel

Weaknesses (CWE)

CWE-119CWE-125

References

https://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a(cna@vuldb.com)

https://github.com/oneafter/0128/blob/main/ob2/repro.mol2(cna@vuldb.com)

https://github.com/openbabel/openbabel/issues/2848(cna@vuldb.com)

https://github.com/openbabel/openbabel/pull/2862(cna@vuldb.com)

https://vuldb.com/?ctiid.346651(cna@vuldb.com)

https://vuldb.com/?id.346651(cna@vuldb.com)

https://vuldb.com/?submit.754379(cna@vuldb.com)

IOC Correlations

No correlations recorded

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