{"id":"CVE-2022-46290","aliases":["GHSA-5rff-8f7c-8jmw","PYSEC-2026-2773"],"url":"https://o3.security/vulnerability/CVE-2022-46290","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.","published":"2023-07-21T21:15:10.830Z","modified":"2026-07-13T16:43:50.996895043Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":{"score":0.00804,"percentile":0.55011,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"PyPI","name":"openbabel","fixedVersion":"3.2.0"}],"fix":{"url":"https://github.com/openbabel/openbabel/commit/b239d06eb724bb684eea0040e9d87cf07072b081","label":"openbabel/openbabel@b239d06"},"references":[{"type":"WEB","url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1665"},{"type":"EVIDENCE","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2022-1665"},{"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-13T16:43:50.996895043Z"}}