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    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.

    Published:Feb 19, 2026
    Last Modified:Apr 18, 2026
    EPS:Feb 19, 2026
    EPSS Score:0.0003
    CVSS Score:4.3

    Affected Products

    Vendor
    Openbabel
    Product
    Open Babel

    Exploits

    https://github.com/oneafter/0128/blob/main/ob2/repro.mol2https://github.com/openbabel/openbabel/issues/2848

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High