CVE-2026-3408 Details
Description
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.
A NULL pointer dereference vulnerability has been identified in Open Babel versions through 3.1.1. The issue arises in the CDXML File Handler, specifically within the OBAtom::GetExplicitValence function in isrc/atom.cpp. This vulnerability can be exploited remotely, leading to a segmentation fault as the program attempts to access a member of a NULL pointer, causing a crash.
Users are advised to update to the latest version of Open Babel, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 2, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/oneafter/0128/blob/main/ob3/repro.cdxml | [email protected] | Issue Tracking |
| https://github.com/openbabel/openbabel/issues/2848 | [email protected] | ExploitIssue Tracking |
| https://github.com/openbabel/openbabel/pull/2862 | [email protected] | Issue Tracking |
| https://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a | [email protected] | Patch |
| https://vuldb.com/?ctiid.348303 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.348303 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.763756 | [email protected] | Third Party AdvisoryVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
| CWE-404 | Improper Resource Shutdown or Release | [email protected] |
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| openbabel open babel | <= 3.1.1 |
CPE
Remediation
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Change History
5 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 4, 2026 | Initial Analysis | [email protected] |
| Mar 2, 2026 | New CVE Received | [email protected] |