{"cve":"CVE-2026-3408","nvd":{"published":"2026-03-02T04:16:06.023","modified":"2026-06-17T10:43:33.380","status":"Analyzed","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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","score":2.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-787","CWE-404","CWE-476"],"references":["https://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a","https://github.com/oneafter/0128/blob/main/ob3/repro.cdxml","https://github.com/openbabel/openbabel/issues/2848","https://github.com/openbabel/openbabel/pull/2862","https://vuldb.com/?ctiid.348303"],"products":["openbabel:open_babel"],"source":"nvd","synced_at":"2026-10-19T22:24:17.937441719+00:00"},"epss":{"cve":"CVE-2026-3408","score":0.00558,"percentile":0.46504,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-rxpr-wq63-jr7p","url":"https://osv.dev/vulnerability/GHSA-rxpr-wq63-jr7p","summary":"Open Babel has a NULL pointer dereference in CDXML OBAtom::GetExplicitValence","modified":"2026-07-13T16:42:34.646090639Z","packages":[{"ecosystem":"PyPI","name":"openbabel","purl":"pkg:pypi/openbabel","ranges":["<3.2.0"],"fixed":["3.2.0"]}]},{"id":"PYSEC-2026-2791","url":"https://osv.dev/vulnerability/PYSEC-2026-2791","summary":"Open Babel has a NULL pointer dereference in CDXML OBAtom::GetExplicitValence","modified":"2026-07-13T16:32:26.300440085Z","packages":[{"ecosystem":"PyPI","name":"openbabel","purl":"pkg:pypi/openbabel","ranges":["<3.2.0"],"fixed":["3.2.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}