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.

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 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. (CVE-2026-3408)

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

  - 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. (CVE-2026-3408)

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
444176	SCA: security update for openbabel (GHSA-rxpr-wq63-jr7p)	Tenable Cloud Security	SCA Checks	medium
444176	SCA: security update for openbabel (GHSA-rxpr-wq63-jr7p)	Tenable Self-Hosted Container Security	SCA Checks	medium
300632	Linux Distros Unpatched Vulnerability : CVE-2026-3408	Nessus	Misc.	medium

Detections

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CVE-2026-3408

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Tenable Plugins

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