UnratedFix available
cyrus-imapd: Fix of 2 CVEs
Type: advisorySources: OSV
- fix CVE-2026-61911: Sieve mailboxexists/metadata tests ignored the lookup ACL on another user's mailbox - fix CVE-2026-61909: CalDAV/CardDAV multiget did not check the ACL of each requested href
- Products
- cyrus-imapd, cyrus-imapd-devel, cyrus-imapd-doc-extra, cyrus-imapd-libs, cyrus-imapd-utils, cyrus-imapd-virusscan, perl-Cyrus
- Affected versions
- Not specified
- Fixed versions
- 3.4.1-7.el9_2.tuxcare.els3
- CVEs
- CVE-2026-61909, CVE-2026-61911
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:48 UTC · Revision 1
Source evidence
- fix CVE-2026-61911: Sieve mailboxexists/metadata tests ignored the lookup ACL on another user's mailbox - fix CVE-2026-61909: CalDAV/CardDAV multiget did not check the ACL of each requested href
osv:CLSA-2026-1790974923
cyrus-imapd
Fixed versions: 3.4.1-7.el9_2.tuxcare.els3
cyrus-imapd-devel
Fixed versions: 3.4.1-7.el9_2.tuxcare.els3
cyrus-imapd-doc-extra
Fixed versions: 3.4.1-7.el9_2.tuxcare.els3
cyrus-imapd-libs
Fixed versions: 3.4.1-7.el9_2.tuxcare.els3
cyrus-imapd-utils
Fixed versions: 3.4.1-7.el9_2.tuxcare.els3
cyrus-imapd-virusscan
Fixed versions: 3.4.1-7.el9_2.tuxcare.els3
perl-Cyrus
Fixed versions: 3.4.1-7.el9_2.tuxcare.els3
Complete source record
{
"id": "acfb6afd90af77418073934ce7187674b7e454baf09cc03f69e686ace88d462f",
"url": "https://osv.dev/vulnerability/CLSA-2026-1790974923",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "cyrus-imapd: Fix of 2 CVEs",
"summary": "- fix CVE-2026-61911: Sieve mailboxexists/metadata tests ignored the lookup ACL on another user's mailbox - fix CVE-2026-61909: CalDAV/CardDAV multiget did not check the ACL of each requested href",
"evidence": "osv:CLSA-2026-1790974923",
"products": [
{
"name": {
"value": "cyrus-imapd",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.4.1-7.el9_2.tuxcare.els3",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-imapd-devel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.4.1-7.el9_2.tuxcare.els3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-imapd-doc-extra",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.4.1-7.el9_2.tuxcare.els3",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-imapd-libs",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.4.1-7.el9_2.tuxcare.els3",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-imapd-utils",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.4.1-7.el9_2.tuxcare.els3",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-imapd-virusscan",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.4.1-7.el9_2.tuxcare.els3",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "perl-Cyrus",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.4.1-7.el9_2.tuxcare.els3",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1790974923",
"aliases": [
"CLSA-2026-1790974923"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.1-7.el9_2.tuxcare.els3"
}
]
}
],
"package": {
"name": "cyrus-imapd",
"purl": "pkg:rpm/tuxcare/cyrus-imapd?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790974923.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.1-7.el9_2.tuxcare.els3"
}
]
}
],
"package": {
"name": "cyrus-imapd-devel",
"purl": "pkg:rpm/tuxcare/cyrus-imapd-devel?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790974923.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.1-7.el9_2.tuxcare.els3"
}
]
}
],
"package": {
"name": "cyrus-imapd-doc-extra",
"purl": "pkg:rpm/tuxcare/cyrus-imapd-doc-extra?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790974923.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.1-7.el9_2.tuxcare.els3"
}
]
}
],
"package": {
"name": "cyrus-imapd-libs",
"purl": "pkg:rpm/tuxcare/cyrus-imapd-libs?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790974923.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.1-7.el9_2.tuxcare.els3"
}
]
}
],
"package": {
"name": "cyrus-imapd-utils",
"purl": "pkg:rpm/tuxcare/cyrus-imapd-utils?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790974923.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.1-7.el9_2.tuxcare.els3"
}
]
}
],
"package": {
"name": "cyrus-imapd-virusscan",
"purl": "pkg:rpm/tuxcare/cyrus-imapd-virusscan?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790974923.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.1-7.el9_2.tuxcare.els3"
}
]
}
],
"package": {
"name": "perl-Cyrus",
"purl": "pkg:rpm/tuxcare/perl-Cyrus?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790974923.json"
}
}
],
"modified": "2026-10-26T09:43:21.515395687Z",
"provider": "osv",
"upstream": [
"CVE-2026-61909",
"CVE-2026-61911"
],
"references": [
"https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1790974923.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-61909",
"https://nvd.nist.gov/vuln/detail/CVE-2026-61911"
]
},
"related_cves": [
{
"value": "CVE-2026-61909",
"evidence": "/upstream"
},
{
"value": "CVE-2026-61911",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449861,
"published_at": "2026-10-02T21:02:16+00:00"
}