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CVE-2026-2705

Open Babel MOL2 File atom.h SetFormalCharge out-of-bounds

Published: Feb 19, 2026Updated: Apr 29, 2026 Sources: CVE List NVD BDUCWE-119
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.7%
Top 52.9%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-119CWE-125

Affected Products

open babelopenbabel
Library
OSS Libraries / generic-library
Open Babeln/a
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
Open BabelСообщество свободного программного обеспечения
LibraryLibrary
OSS Libraries / generic-library
openbabeloss-projectOSS Librariesaka open babel, openbabel
ооо «ред софт»commercialRUOperating Systemsaka red soft
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

3 techniques
Collection
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a
github.com
https://github.com/oneafter/0128/blob/main/ob2/repro.mol2
github.com
https://github.com/openbabel/openbabel/issues/2848
github.com
and 10 more references View all →

Timeline

Published
Feb 19, 2026
Last Updated
Apr 29, 2026

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