{"id":"CVE-2022-46292","aliases":["GHSA-55f6-pf8r-c2f4","PYSEC-2026-2771"],"url":"https://o3.security/vulnerability/CVE-2022-46292","summary":"Open Babel has out-of-bounds write in MOPAC translationVectors[] (UNIT CELL TRANSLATION)","details":"### Summary\n\nA memory-safety vulnerability in Open Babel's MOPAC output parser\nallowed an out-of-bounds write into the `translationVectors[]` array\nwhen reading the \"UNIT CELL TRANSLATION\" block of a crafted input\nfile.\n\n### Details\n\nThe MOPAC output reader stored translation vectors from the UNIT CELL\nTRANSLATION block into a fixed-size `translationVectors[]` array. A\nmalformed block could push more vectors than the array had slots,\ncausing a write past the end of the array. One of five\n`translationVectors[]` OOB writes in the TALOS 2022 batch.\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 MOPAC output file with the\n`obabel` tool, the `OBConversion` API, or any of the language\nbindings (Python, Ruby, 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/40e85213\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":"2023-07-21T21:15:10.993Z","modified":"2026-07-13T16:43:48.418993517Z","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":0.54933,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"PyPI","name":"openbabel","fixedVersion":"3.2.0"}],"fix":{"url":"https://github.com/openbabel/openbabel/commit/40e852138f21d586b7ccdce6329e7b23a87168bb","label":"openbabel/openbabel@40e8521"},"references":[{"type":"WEB","url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1666"},{"type":"EVIDENCE","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2022-1666"},{"type":"WEB","url":"https://github.com/openbabel/openbabel/security/advisories/GHSA-55f6-pf8r-c2f4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-46292"},{"type":"WEB","url":"https://github.com/openbabel/openbabel/commit/40e852138f21d586b7ccdce6329e7b23a87168bb"},{"type":"PACKAGE","url":"https://github.com/openbabel/openbabel"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-13T16:43:48.418993517Z"}}