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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. The project was informed of the problem early through an issue report but has not responded yet.

PUBLISHED Reserved 2026-02-18 | Published 2026-02-19 | Updated 2026-02-24 | Assigner VulDB




MEDIUM: 5.3CVSS: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
MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
MEDIUM: 4.3CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
5.0AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

Problem types

Out-of-Bounds Read

Memory Corruption

Timeline

2026-02-18:Advisory disclosed
2026-02-18:VulDB entry created
2026-02-21:VulDB entry last update

Credits

Oneafter (VulDB User) reporter

References

vuldb.com/?id.346650 (VDB-346650 | Open Babel CIF File transform3d.cpp DescribeAsString out-of-bounds) vdb-entry technical-description

vuldb.com/?ctiid.346650 (VDB-346650 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.754378 (Submit #754378 | openbabel master-branch Heap-based Buffer Overflow) third-party-advisory

github.com/openbabel/openbabel/issues/2848 issue-tracking

github.com/oneafter/0128/blob/main/ob1/repro.cif exploit

cve.org (CVE-2026-2704)

nvd.nist.gov (CVE-2026-2704)

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