{"schemaVersion":3,"id":"SUSE-SU-2026:3919-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Security update for dovecot22\n\nThis update for dovecot22 fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2026-27852: DoS by sending mail with bad header (bsc#1276799).\n- CVE-2026-33604: SMTP smuggling via missing dot-stuffing after bare carriage return (bsc#1276802).\n- CVE-2026-33605: `managesieve-login`: pre-auth crash (bsc#1276809).\n- CVE-2026-33606: `dsync`: mail content can cause `dsync` protocol injection (bsc#1276800).\n- CVE-2026-33607: IMAP `LIST` `match_sub()` exponential backtracking leading to CPU denial of service (bsc#1276795).\n- CVE-2026-40014: CPU DoS via crafted references header (bsc#1276804).\n- CVE-2026-40015: `imap-hibernate` can be crashed (bsc#1276812).\n- CVE-2026-40019: `managesieve-login` pre-auth infinite loop (bsc#1276811).\n- CVE-2026-40203: IMAP compression can reveal whether a small synced email body matches sender-chosen text\n  (bsc#1276815).\n- CVE-2026-42007: `sieve` `editheader` RCE (bsc#1276817).\n- CVE-2026-42391: `imap`: pre-login memory/CPU growth with `ID` command (bsc#1276835).\n- CVE-2026-42393: `doveadm_password` or api key length can be leaked with timing comparisons (bsc#1276827).\n- CVE-2026-52687: `imap`: `COMPRESS ZSTD` can cause excessive memory usage (bsc#1276837).\n- CVE-2026-73209: `imap-login` crash due to self-recursion on zero-output decompress chunks (bsc#1276833).\n- multiple security fixes (bsc#1276792).\n\nOther updates and bugfixes:\n\n- Non-CVE hardening taken from the same upstream release:\n  * `sieve`: requiring the same extension repeatedly grew the default argument override chain, which is walked\n    recursively - a crafted script could overflow the stack\n  * `sieve`: `${unicode:...}` hex values could overflow an `unsigned int` and wrap back into the valid Unicode range;\n    the hex parser also read one byte past the end of the buffer\n  * `sieve` variables: the `${1234...}` numeric index overflowed a `signed int`\n  * `sieve enotify`: a single script could emit an unlimited number of notification messages; limited to 10 as upstream\n    does","dates":{"published":"2026-09-02T07:31:54.000Z","modified":"2026-09-10T18:23:19.872Z","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":"suse","product":"dovecot22&distro=SUSE Linux Enterprise Server 12 SP5-LTSS","name":"dovecot22","label":"dovecot22&distro=SUSE Linux Enterprise Server 12 SP5-LTSS","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/dovecot22&distro=SUSE Linux Enterprise Server 12 SP5-LTSS","purlType":"rpm","versions":[{"text":"< 2.2.31-19.40.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.2.31-19.40.1","eol":null,"hubHref":null},{"vendor":"suse","product":"dovecot22&distro=SUSE Linux Enterprise Server LTSS Extended Security 12 SP5","name":"dovecot22","label":"dovecot22&distro=SUSE Linux Enterprise Server LTSS Extended Security 12 SP5","ecosystem":"SUSE Linux Enterprise","cpePart":null,"purl":"pkg:rpm/suse/dovecot22&distro=SUSE Linux Enterprise Server LTSS Extended Security 12 SP5","purlType":"rpm","versions":[{"text":"< 2.2.31-19.40.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.2.31-19.40.1","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20263919-1/","label":"www.suse.com/support/update/announcement/2026/suse-su-20263919-1/","hostname":"www.suse.com","tags":["Advisory"]},{"url":"https://bugzilla.suse.com/1276792","label":"bugzilla.suse.com/1276792","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1276795","label":"bugzilla.suse.com/1276795","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1276799","label":"bugzilla.suse.com/1276799","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1276800","label":"bugzilla.suse.com/1276800","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1276802","label":"bugzilla.suse.com/1276802","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1276804","label":"bugzilla.suse.com/1276804","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1276809","label":"bugzilla.suse.com/1276809","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1276811","label":"bugzilla.suse.com/1276811","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1276812","label":"bugzilla.suse.com/1276812","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1276815","label":"bugzilla.suse.com/1276815","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1276817","label":"bugzilla.suse.com/1276817","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1276827","label":"bugzilla.suse.com/1276827","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1276833","label":"bugzilla.suse.com/1276833","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1276835","label":"bugzilla.suse.com/1276835","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://bugzilla.suse.com/1276837","label":"bugzilla.suse.com/1276837","hostname":"bugzilla.suse.com","tags":["REPORT"]},{"url":"https://www.suse.com/security/cve/CVE-2026-27852","label":"www.suse.com/security/cve/CVE-2026-27852","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-33604","label":"www.suse.com/security/cve/CVE-2026-33604","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-33605","label":"www.suse.com/security/cve/CVE-2026-33605","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-33606","label":"www.suse.com/security/cve/CVE-2026-33606","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-33607","label":"www.suse.com/security/cve/CVE-2026-33607","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-40014","label":"www.suse.com/security/cve/CVE-2026-40014","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-40015","label":"www.suse.com/security/cve/CVE-2026-40015","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-40019","label":"www.suse.com/security/cve/CVE-2026-40019","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-40203","label":"www.suse.com/security/cve/CVE-2026-40203","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-42007","label":"www.suse.com/security/cve/CVE-2026-42007","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-42391","label":"www.suse.com/security/cve/CVE-2026-42391","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-42393","label":"www.suse.com/security/cve/CVE-2026-42393","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-52687","label":"www.suse.com/security/cve/CVE-2026-52687","hostname":"www.suse.com","tags":["WEB"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73209","label":"www.suse.com/security/cve/CVE-2026-73209","hostname":"www.suse.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2026-27852","CVE-2026-33604","CVE-2026-33605","CVE-2026-33606","CVE-2026-33607","CVE-2026-40014","CVE-2026-40015","CVE-2026-40019","CVE-2026-40203","CVE-2026-42007","CVE-2026-42391","CVE-2026-42393","CVE-2026-52687","CVE-2026-73209"],"downstream":[],"duplicates":[],"related":["CVE-2026-27852","CVE-2026-33604","CVE-2026-33605","CVE-2026-33606","CVE-2026-33607","CVE-2026-40014","CVE-2026-40015","CVE-2026-40019","CVE-2026-40203","CVE-2026-42007","CVE-2026-42391","CVE-2026-42393","CVE-2026-52687","CVE-2026-73209"]},"timeline":[{"kind":"published","date":"2026-09-02T07:31:54.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-09-10T18:23:19.872Z","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":"2026-10-21T19:56:54.748Z","stale":false,"partial":false}}