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CVE-2026-2705 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

CNA: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/oneafter/0128/blob/main/ob2/repro.mol2	[email protected]	Exploit
https://github.com/openbabel/openbabel/issues/2848	[email protected]	ExploitIssue Tracking
https://github.com/openbabel/openbabel/pull/2862	[email protected]
https://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a	[email protected]
https://vuldb.com/?ctiid.346651	[email protected]	Permissions RequiredVDB Entry
https://vuldb.com/?id.346651	[email protected]	Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.754379	[email protected]	Third Party AdvisoryVDB Entry

see all 7 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer	[email protected]
CWE-125	Out-of-bounds Read	[email protected]

Affected Products

Product	Versions
openbabel open babel	<= 3.1.1
CPE cpe:2.3:a:openbabel:open_babel:::::::: Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Apr 29, 2026	Data Remediation	[email protected]
Mar 1, 2026	CVE Modified	[email protected]
Feb 19, 2026	Initial Analysis	[email protected]
Feb 19, 2026	New CVE Received	[email protected]