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VulnerabilityPublished Updated

CVE-2026-2704: Openbabel · A security vulnerability has been detected in Open Babel up to 3.1.1

Affects openbabelSource GCVE Database

0
Authoritative record:CVE-2026-2704· Medium 5.3

Public exploit available · CVSS 5.3 Medium.

Data as of 28 Oct 2026, 22:28 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: evidence found.

    CVSS exploit maturity: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10openbabelpkg:deb/ubuntu/openbabel?arch=source&distro=stonkingOther threatsAffected
  • =3.1.1+dfsg-11ubuntu5
  • =3.1.1+dfsg-14ubuntu2
Fixed in–
Ubuntu 26.04 LTSopenbabelpkg:deb/ubuntu/openbabel?arch=source&distro=resoluteOther threatsAffected
  • =3.1.1+dfsg-11ubuntu4
  • =3.1.1+dfsg-11ubuntu5
Fixed in–
Ubuntu 25.10openbabelpkg:deb/ubuntu/openbabel?arch=source&distro=questingOther threatsAffected
  • =3.1.1+dfsg-11ubuntu3
  • =3.1.1+dfsg-11ubuntu4
Fixed in–
Ubuntu 24.04 LTSopenbabelpkg:deb/ubuntu/openbabel?arch=source&distro=nobleOther threatsAffected
  • 3.1.1+dfsg-9build2 – 3.1.1+dfsg-9ubuntu5
5 affected builds
Fixed in–
Ubuntu 22.04 LTSopenbabelpkg:deb/ubuntu/openbabel?arch=source&distro=jammyOther threatsAffected
  • =3.1.1+dfsg-6ubuntu1
  • =3.1.1+dfsg-6ubuntu5
Fixed in–
Ubuntu 20.04 LTSopenbabelpkg:deb/ubuntu/openbabel?arch=source&distro=focalOther threatsAffected
  • 2.4.1+dfsg-3 – 3.0.0+dfsg-3ubuntu3
6 affected builds
Fixed in–

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Description

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.

References

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