{"cve":"CVE-2021-38542","nvd":{"published":"2022-01-04T09:15:07.267","modified":"2026-06-17T04:02:19.870","status":"Modified","description":"Apache James prior to release 3.6.1 is vulnerable to a buffering attack relying on the use of the STARTTLS command. This can result in Man-in -the-middle command injection attacks, leading potentially to leakage of sensible information.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","score":5.9},"cwes":["CWE-327","CWE-77"],"references":["http://www.openwall.com/lists/oss-security/2022/01/04/1","http://www.openwall.com/lists/oss-security/2022/09/20/1","https://www.openwall.com/lists/oss-security/2022/01/04/1","http://www.openwall.com/lists/oss-security/2022/01/04/1","http://www.openwall.com/lists/oss-security/2022/09/20/1"],"products":["apache:james"],"source":"nvd","synced_at":"2026-10-19T21:26:33.761856376+00:00"},"epss":{"cve":"CVE-2021-38542","score":0.02347,"percentile":0.83671,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-84wg-rgp8-2hg4","url":"https://osv.dev/vulnerability/GHSA-84wg-rgp8-2hg4","summary":"Command Injection in Apache James","modified":"2026-09-10T03:49:10.761167356Z","packages":[{"ecosystem":"Maven","name":"org.apache.james:james-server","purl":"pkg:maven/org.apache.james/james-server","ranges":["<3.6.1"],"fixed":["3.6.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}