{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-79590", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-09-10T21:49:52.229Z", "dateReserved": "2026-08-25T00:00:00.000Z", "datePublished": "2026-09-10T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-09-10T21:49:52.229Z"}, "descriptions": [{"lang": "en", "value": "A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, resulting in undefined behavior and application crash."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://github.com/mruby/mruby/issues/7032"}, {"url": "https://github.com/takumin/mruby/commit/c6866eed4ad5640b552ba79d16063e7ec70a0ac9"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}}, "dataVersion": "5.2"}

{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A NULL pointer dereference vulnerability exists in the Prism parser component of mruby 4.0.0. An attacker can provide a specially crafted Ruby source file that triggers the parser to pass a NULL pointer to nonnull string handling functions, resulting in undefined behavior and application crash."}], "id": "CVE-2026-79590", "lastModified": "2026-09-10T22:17:00.267", "metrics": {}, "published": "2026-09-10T22:17:00.267", "references": [{"source": "[email protected]", "url": "https://github.com/mruby/mruby/issues/7032"}, {"source": "[email protected]", "url": "https://github.com/takumin/mruby/commit/c6866eed4ad5640b552ba79d16063e7ec70a0ac9"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "4.0.0"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "mruby", "vendor": "mruby"}], "created": "2026-09-11T02:00:15.810442+00:00", "title": "NULL Pointer Dereference in Prism Parser of mruby 4.0.0", "updated": "2026-09-11T12:15:07.707388+00:00", "vendors": ["mruby", "mruby$PRODUCT$mruby"], "weaknesses": ["CWE-476"]}