UnratedFix available
Fix CVE(s): CVE-2026-61915
Type: advisorySources: OSV
* SECURITY UPDATE: Double free in CalDAV VPATCH BYPARAM handling - debian/patches/CVE-2026-61915-pre.patch: do not free the PATCH-ACTION parameter already freed by icalproperty_remove_parameter_by_ref() - debian/patches/CVE-2026-61915.patch: free the BYPARAM selector once after the property loop in apply_property_updates() - CVE-2026-61915
- Products
- cyrus-admin, cyrus-caldav, cyrus-clients, cyrus-common, cyrus-dev, cyrus-doc, cyrus-imapd, cyrus-murder, cyrus-nntpd, cyrus-pop3d, cyrus-replication, libcyrus-imap-perl
- Affected versions
- Not specified
- Fixed versions
- 3.0.13-5+tuxcare.els1
- CVEs
- CVE-2026-61915
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:45 UTC · Revision 1
Source evidence
* SECURITY UPDATE: Double free in CalDAV VPATCH BYPARAM handling - debian/patches/CVE-2026-61915-pre.patch: do not free the PATCH-ACTION parameter already freed by icalproperty_remove_parameter_by_ref() - debian/patches/CVE-2026-61915.patch: free the BYPARAM selector once after the property loop in apply_property_updates() - CVE-2026-61915
osv:CLSA-2026-1791997969
cyrus-admin
Fixed versions: 3.0.13-5+tuxcare.els1
cyrus-caldav
Fixed versions: 3.0.13-5+tuxcare.els1
cyrus-clients
Fixed versions: 3.0.13-5+tuxcare.els1
cyrus-common
Fixed versions: 3.0.13-5+tuxcare.els1
cyrus-dev
Fixed versions: 3.0.13-5+tuxcare.els1
cyrus-doc
Fixed versions: 3.0.13-5+tuxcare.els1
cyrus-imapd
Fixed versions: 3.0.13-5+tuxcare.els1
cyrus-murder
Fixed versions: 3.0.13-5+tuxcare.els1
cyrus-nntpd
Fixed versions: 3.0.13-5+tuxcare.els1
cyrus-pop3d
Fixed versions: 3.0.13-5+tuxcare.els1
cyrus-replication
Fixed versions: 3.0.13-5+tuxcare.els1
libcyrus-imap-perl
Fixed versions: 3.0.13-5+tuxcare.els1
Complete source record
{
"id": "801f5d1750a75e097a61ca59491d5326e1a657a633bb4f6121025d29c17a4cc3",
"url": "https://osv.dev/vulnerability/CLSA-2026-1791997969",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix CVE(s): CVE-2026-61915",
"summary": "* SECURITY UPDATE: Double free in CalDAV VPATCH BYPARAM handling - debian/patches/CVE-2026-61915-pre.patch: do not free the PATCH-ACTION parameter already freed by icalproperty_remove_parameter_by_ref() - debian/patches/CVE-2026-61915.patch: free the BYPARAM selector once after the property loop in apply_property_updates() - CVE-2026-61915",
"evidence": "osv:CLSA-2026-1791997969",
"products": [
{
"name": {
"value": "cyrus-admin",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.13-5+tuxcare.els1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-caldav",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.13-5+tuxcare.els1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-clients",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.13-5+tuxcare.els1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-common",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.13-5+tuxcare.els1",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-dev",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.13-5+tuxcare.els1",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-doc",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.13-5+tuxcare.els1",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-imapd",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.13-5+tuxcare.els1",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-murder",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.13-5+tuxcare.els1",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-nntpd",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.13-5+tuxcare.els1",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-pop3d",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.13-5+tuxcare.els1",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cyrus-replication",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.13-5+tuxcare.els1",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libcyrus-imap-perl",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.13-5+tuxcare.els1",
"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1791997969",
"aliases": [
"CLSA-2026-1791997969"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.13-5+tuxcare.els1"
}
]
}
],
"package": {
"name": "cyrus-admin",
"purl": "pkg:deb/tuxcare/cyrus-admin?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1791997969.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.13-5+tuxcare.els1"
}
]
}
],
"package": {
"name": "cyrus-caldav",
"purl": "pkg:deb/tuxcare/cyrus-caldav?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1791997969.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.13-5+tuxcare.els1"
}
]
}
],
"package": {
"name": "cyrus-clients",
"purl": "pkg:deb/tuxcare/cyrus-clients?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1791997969.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.13-5+tuxcare.els1"
}
]
}
],
"package": {
"name": "cyrus-common",
"purl": "pkg:deb/tuxcare/cyrus-common?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1791997969.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.13-5+tuxcare.els1"
}
]
}
],
"package": {
"name": "cyrus-dev",
"purl": "pkg:deb/tuxcare/cyrus-dev?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1791997969.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.13-5+tuxcare.els1"
}
]
}
],
"package": {
"name": "cyrus-doc",
"purl": "pkg:deb/tuxcare/cyrus-doc?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1791997969.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.13-5+tuxcare.els1"
}
]
}
],
"package": {
"name": "cyrus-imapd",
"purl": "pkg:deb/tuxcare/cyrus-imapd?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1791997969.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.13-5+tuxcare.els1"
}
]
}
],
"package": {
"name": "cyrus-murder",
"purl": "pkg:deb/tuxcare/cyrus-murder?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1791997969.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.13-5+tuxcare.els1"
}
]
}
],
"package": {
"name": "cyrus-nntpd",
"purl": "pkg:deb/tuxcare/cyrus-nntpd?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1791997969.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.13-5+tuxcare.els1"
}
]
}
],
"package": {
"name": "cyrus-pop3d",
"purl": "pkg:deb/tuxcare/cyrus-pop3d?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1791997969.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.13-5+tuxcare.els1"
}
]
}
],
"package": {
"name": "cyrus-replication",
"purl": "pkg:deb/tuxcare/cyrus-replication?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1791997969.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.13-5+tuxcare.els1"
}
]
}
],
"package": {
"name": "libcyrus-imap-perl",
"purl": "pkg:deb/tuxcare/libcyrus-imap-perl?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1791997969.json"
}
}
],
"modified": "2026-10-26T09:32:05.733046626Z",
"provider": "osv",
"upstream": [
"CVE-2026-61915"
],
"references": [
"https://errata.tuxcare.com/els_os/ubuntu20.04els/CLSA-2026-1791997969.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-61915"
]
},
"related_cves": [
{
"value": "CVE-2026-61915",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449717,
"published_at": "2026-10-14T17:13:00+00:00"
}