{"id":"GHSA-5rff-8f7c-8jmw","summary":"Open Babel has out-of-bounds write in ORCA nAtoms parser (second variant)","details":"### Summary\n\nA memory-safety vulnerability in Open Babel's ORCA parser allowed an\nout-of-bounds write when reading a crafted input file.\n\n### Details\n\nA second variant of the `nAtoms` out-of-bounds write in the ORCA\nreader: a different malformed-input path produced the same class of\nwrite past the end of the destination buffer.\n\n### Impact\n\nOpen Babel is a C++ library and CLI used to read and write chemistry\nfile formats; it is shipped by Linux distributions and embedded in\nservices that may parse untrusted input. Triggering this vulnerability\nrequires the victim to open a malicious ORCA file with the `obabel`\ntool, the `OBConversion` API, or any of the language bindings (Python,\nRuby, Java, R, Perl, C#, PHP).\n\n### Affected versions\n\nAll releases up to and including 3.1.1.\n\n### Patched version\n\n3.2.0 (released 2026-05-26).\n\n### Patch\n\nFix commit: https://github.com/openbabel/openbabel/commit/b239d06e\n\nA minimized reproducer for this CVE is checked in under\n`test/files/fuzz_regress/` and is exercised on every CI build under\nASAN+UBSAN by the `fuzzregresstest` harness.\n\n### Credit\n\nReported by Cisco TALOS.","aliases":["CVE-2022-46290","PYSEC-2026-2773"],"modified":"2026-07-13T16:43:50.996895043Z","published":"2026-07-01T17:50:21Z","database_specific":{"nvd_published_at":null,"cwe_ids":["CWE-122","CWE-787"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-07-01T17:50:21Z"},"references":[{"type":"WEB","url":"https://github.com/openbabel/openbabel/security/advisories/GHSA-5rff-8f7c-8jmw"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-46290"},{"type":"WEB","url":"https://github.com/openbabel/openbabel/commit/b239d06eb724bb684eea0040e9d87cf07072b081"},{"type":"PACKAGE","url":"https://github.com/openbabel/openbabel"},{"type":"WEB","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2022-1665"},{"type":"WEB","url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1665"}],"affected":[{"package":{"name":"openbabel","ecosystem":"PyPI","purl":"pkg:pypi/openbabel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.0"}]}],"versions":["1.8","1.8.1","1.8.2","1.8.3","1.8.4","2.4.0","2.4.1","3.0.0","3.0.0a1","3.1.1","3.1.1.1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-5rff-8f7c-8jmw/GHSA-5rff-8f7c-8jmw.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}