{"schemaVersion":3,"id":"USN-8063-2","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"protobuf vulnerability\n\nUSN-8063-1 fixed a vulnerability in Protocol Buffers. This update provides\nthe corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.\n\nOriginal advisory details:\n\n It was discovered that Protocol Buffers incorrectly handled recursion\n when the Python google.protobuf.json_format.ParseDict() function is  being\n used. An attacker could possibly use this issue to cause  Protocol Buffers\n to consume resources, resulting in a denial of  service.","dates":{"published":"2026-05-26T20:31:47.000Z","modified":"2026-06-30T18:15:32.316Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"protobuf","name":"protobuf","label":"protobuf","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/protobuf","purlType":"deb","versions":[{"text":"< 3.0.0-9.1ubuntu1.1+esm4","noFixRecorded":false,"fixedIn":null},{"text":"< 3.6.1.3-2ubuntu5.2+esm3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.0.0-9.1ubuntu1.1+esm4 | < 3.6.1.3-2ubuntu5.2+esm3","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8063-2","label":"ubuntu.com/security/notices/USN-8063-2","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-0994","label":"ubuntu.com/security/CVE-2026-0994","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":["CVE-2026-0994"]},"timeline":[{"kind":"published","date":"2026-05-26T20:31:47.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-30T18:15:32.316Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T18:45:48.725Z","stale":false,"partial":false}}