Medium
openbabel — security advisory
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.
- Products
- openbabel
- Affected versions
- 2.3.2+dfsg-2.2, 2.3.2+dfsg-2.2build1, 2.3.2+dfsg-3build1, 2.4.1+dfsg-3, 2.4.1+dfsg-3build1, 2.4.1+dfsg-5.1, 2.4.1+dfsg-6, 3.0.0+dfsg-3, 3.0.0+dfsg-3ubuntu3, 3.1.1+dfsg-11ubuntu3, 3.1.1+dfsg-11ubuntu4, 3.1.1+dfsg-11ubuntu5, 3.1.1+dfsg-14ubuntu2, 3.1.1+dfsg-6ubuntu1, 3.1.1+dfsg-6ubuntu5, 3.1.1+dfsg-9build2, 3.1.1+dfsg-9ubuntu1, 3.1.1+dfsg-9ubuntu2, 3.1.1+dfsg-9ubuntu4, 3.1.1+dfsg-9ubuntu5
- Fixed versions
- Not specified
- CVEs
- CVE-2026-3408
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:08 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-3408
openbabel
Fixed versions: Not specified
openbabel
Fixed versions: Not specified
openbabel
Fixed versions: Not specified
openbabel
Fixed versions: Not specified
openbabel
Fixed versions: Not specified
openbabel
Fixed versions: Not specified
openbabel
Fixed versions: Not specified
openbabel
Fixed versions: Not specified
Complete source record
{
"id": "688623c8c560219daf78cdedd1f7af0371cd6595bc123a55d1ea4e582b5a395d",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-3408",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-3408",
"summary": "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.",
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"aliases": [
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],
"modified": "2026-10-17T12:58:11.954112906Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-3408",
"https://www.cve.org/CVERecord?id=CVE-2026-3408",
"https://github.com/openbabel/openbabel/issues/2848",
"https://github.com/openbabel/openbabel/pull/2862",
"https://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a",
"https://github.com/oneafter/0128/blob/main/ob3/repro.cdxml",
"https://vuldb.com/?ctiid.348303",
"https://vuldb.com/?id.348303",
"https://vuldb.com/?submit.763756"
]
},
"related_cves": [
{
"value": "CVE-2026-3408",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 358326,
"published_at": "2026-03-02T04:16:00+00:00"
}