{"schemaVersion":3,"id":"CVE-2021-42010","aliases":["GHSA-95w5-q9vp-5vrm"],"status":"published","duplicateOf":null,"title":null,"description":"Heron versions <= 0.20.4-incubating allows CRLF log injection because of the lack of escaping in the log statements. Please update to version 0.20.5-incubating which addresses this issue.","dates":{"published":"2022-10-24T00:00:00.000Z","modified":"2025-05-07T15:53:35.603Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Maven","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":10,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01585,"percentile":0.75218,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.03099999999999995,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.01554},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01585,"percentile":0.75218}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01554,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01585,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01585,"percentile":0.75218}]},"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":[{"id":"CWE-116","name":"Improper Encoding or Escaping of Output","description":"The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/116.html"}],"affected":[{"vendor":"apache software foundation","product":"apache heron (incubating)","name":"Apache Heron (Incubating)","label":"apache heron (incubating)","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ Apache Heron 0.20.4-incubating, ≤ 0.20.4-incubating","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ Apache Heron 0.20.4-incubating, ≤ 0.20.4-incubating","eol":null,"hubHref":"/vendor/apache_software_foundation/apache_heron_incubating"},{"vendor":"apache","product":"heron","name":"heron","label":"heron","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 0.20.5-incubating","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.20.5-incubating","eol":null,"hubHref":"/vendor/apache/heron"},{"vendor":"org.apache.heron","product":"heron-api","name":"org.apache.heron:heron-api","label":"heron-api","ecosystem":"Maven","cpePart":null,"purl":"pkg:maven/org.apache.heron/heron-api","purlType":"maven","versions":[{"text":"< 0.20.5-incubating","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.20.5-incubating","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://lists.apache.org/thread/j65nwr8n7jchngwqptzh100drcr4ry2q","label":"lists.apache.org/thread/j65nwr8n7jchngwqptzh100drcr4ry2q","hostname":"lists.apache.org","tags":["WEB","Mailing List","Vendor Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2022/10/23/2","label":"www.openwall.com/lists/oss-security/2022/10/23/2","hostname":"www.openwall.com","tags":["Mailing List","WEB","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42010","label":"nvd.nist.gov/vuln/detail/CVE-2021-42010","hostname":"nvd.nist.gov","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2022-10-24T00:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-05-07T15:53:35.603Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T22:42:41.149Z","stale":false,"partial":false}}