A security vulnerability has been detected in Open Babel up to 3.1.1. The affected element is the function OpenBabel::transform3d::DescribeAsString of the file src/math/transform3d.cpp of the component CIF File Handler. The manipulation leads to out-of-bounds read. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 3.2.0 is sufficient to fix this issue. The identifier of the patch is e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a. It is suggested to install a patch to address this issue.

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21190-1 advisory.

    Changes in openbabel:

    - Update to version 3.2.0:
      * Add an L-BFGS optimizer, used by default for gen3d and         conformer searches
      * New macrocycle ring builder (Dale codes) for better initial         3D geometry of large rings
      * Add KET (Ketcher JSON) and ChemicalJSON (.cjson) format         support
      * Drop Python 2 support; Python 3.13 supported
      * Faster, vectorized distance-geometry implementation
      * Full CMake 4 compatibility and modernized build
      * Backwards compatible with 3.0 and 3.1
      * Fix many crash and memory-safety bugs found via OSS-Fuzz         and TALOS, including the following security issues:
        CVE-2022-37331 (boo#1217676), CVE-2022-41793, CVE-2022-42885,         CVE-2022-43467, CVE-2022-43607, CVE-2022-44451,         CVE-2022-46280, CVE-2022-46289, CVE-2022-46290,         CVE-2022-46291, CVE-2022-46292, CVE-2022-46294,         CVE-2022-46295, CVE-2025-10994, CVE-2025-10995,         CVE-2025-10996, CVE-2025-10997, CVE-2025-10998,         CVE-2025-10999, CVE-2025-11000,         CVE-2026-2704 (boo#1258501), CVE-2026-2705 (boo#1258507) and         CVE-2026-3408 (boo#1259041)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A security vulnerability has been detected in Open Babel up to 3.1.1. The affected element is the function
    OpenBabel::transform3d::DescribeAsString of the file src/math/transform3d.cpp of the component CIF File
    Handler. The manipulation leads to out-of-bounds read. It is possible to initiate the attack remotely. The
    exploit has been disclosed publicly and may be used. Upgrading to version 3.2.0 is sufficient to fix this
    issue. The identifier of the patch is e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a. It is suggested to install
    a patch to address this issue. (CVE-2026-2704)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A security vulnerability has been detected in Open Babel up to 3.1.1. The affected element is the function     OpenBabel::transform3d::DescribeAsString of the file src/math/transform3d.cpp of the component CIF File     Handler. The manipulation leads to out-of-bounds read. It is possible to initiate the attack remotely. The     exploit has been disclosed publicly and may be used. Upgrading to version 3.2.0 is sufficient to fix this     issue. The identifier of the patch is e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a. It is suggested to install     a patch to address this issue. (CVE-2026-2704)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
325051	openSUSE 16: libopenbabel8 / openbabel / openbabel-devel / openbabel-gui / etc (openSUSE-SU-2026:21190-1)	Nessus	SuSE Local Security Checks	medium
444138	SCA: security update for openbabel (GHSA-6xw4-2g22-26h8)	Tenable Cloud Security	SCA Checks	medium
444138	SCA: security update for openbabel (GHSA-6xw4-2g22-26h8)	Tenable Self-Hosted Container Security	SCA Checks	medium
299600	Linux Distros Unpatched Vulnerability : CVE-2026-2704	Nessus	Misc.	medium

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CVE-2026-2704

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