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. Upgrading to version 3.2.0 is sufficient to fix this issue. The identifier of the patch is e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a. It is suggested to install a patch to address this issue.
CVE-2026-2704
Score 4.3 from GitHub Security Advisory published 2026-02-19. NVD baseline CVSS 4.3; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.3
- EG Score
- 4.3(medium)
- EG Risk
- —
- EPSS
- 51.4%
- KEV
- Not listed
Published
February 19, 2026
Last Modified
May 28, 2026
References (9)
- cna@vuldbhttps://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a
- cna@vuldbhttps://github.com/oneafter/0128/blob/main/ob1/repro.cif
- cna@vuldbhttps://github.com/openbabel/openbabel/issues/2848
- cna@vuldbhttps://github.com/openbabel/openbabel/pull/2862
- cna@vuldbhttps://github.com/openbabel/openbabel/releases/tag/openbabel-3-2-0
- cna@vuldbhttps://github.com/openbabel/openbabel/security/advisories/GHSA-6xw4-2g22-26h8
- cna@vuldbhttps://vuldb.com/submit/754378
- cna@vuldbhttps://vuldb.com/vuln/346650
- cna@vuldbhttps://vuldb.com/vuln/346650/cti
Vendor Advisories for CVE-2026-2704(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openbabel | 1.8 ... 3.1.1.1 (11 versions) | 3.2.0 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 14× in last 7d / 47× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Related CVEs(same CWE)
Same CWE
10 shownCWE-119 · CWE-125
Frequently asked(5)
What is CVE-2026-2704?
When was CVE-2026-2704 disclosed?
Is CVE-2026-2704 actively exploited?
What is the CVSS score of CVE-2026-2704?
How do I remediate CVE-2026-2704?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-2704
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