UnratedFix available
memcached: Fix of CVE-2026-47783
Type: advisorySources: OSV
- CVE-2026-47783: timing side-channel in SASL userdb auth; use constant-time safe_memcmp() for username/password and drop the early break so the whole password file is always scanned.
- Products
- memcached, memcached-devel, memcached-selinux
- Affected versions
- Not specified
- Fixed versions
- 1.6.9-7.el9.tuxcare.els2
- CVEs
- CVE-2026-47783
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 10:50 UTC · Revision 1
Source evidence
- CVE-2026-47783: timing side-channel in SASL userdb auth; use constant-time safe_memcmp() for username/password and drop the early break so the whole password file is always scanned.
osv:CLSA-2026-1783629498
memcached
Fixed versions: 1.6.9-7.el9.tuxcare.els2
memcached-devel
Fixed versions: 1.6.9-7.el9.tuxcare.els2
memcached-selinux
Fixed versions: 1.6.9-7.el9.tuxcare.els2
Complete source record
{
"id": "a45a08a8a2eb9fbfe08abd1d448ba8e6b33b9fc9270351e2df51406a28b5bbaa",
"url": "https://osv.dev/vulnerability/CLSA-2026-1783629498",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "memcached: Fix of CVE-2026-47783",
"summary": "- CVE-2026-47783: timing side-channel in SASL userdb auth; use constant-time safe_memcmp() for username/password and drop the early break so the whole password file is always scanned.",
"evidence": "osv:CLSA-2026-1783629498",
"products": [
{
"name": {
"value": "memcached",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.6.9-7.el9.tuxcare.els2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "memcached-devel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.6.9-7.el9.tuxcare.els2",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "memcached-selinux",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.6.9-7.el9.tuxcare.els2",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1783629498",
"aliases": [
"CLSA-2026-1783629498"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.6.9-7.el9.tuxcare.els2"
}
]
}
],
"package": {
"name": "memcached",
"purl": "pkg:rpm/tuxcare/memcached?distro=almalinux-9.6",
"ecosystem": "TuxCare:AlmaLinux:9.6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1783629498.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.6.9-7.el9.tuxcare.els2"
}
]
}
],
"package": {
"name": "memcached-devel",
"purl": "pkg:rpm/tuxcare/memcached-devel?distro=almalinux-9.6",
"ecosystem": "TuxCare:AlmaLinux:9.6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1783629498.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.6.9-7.el9.tuxcare.els2"
}
]
}
],
"package": {
"name": "memcached-selinux",
"purl": "pkg:rpm/tuxcare/memcached-selinux?distro=almalinux-9.6",
"ecosystem": "TuxCare:AlmaLinux:9.6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1783629498.json"
}
}
],
"modified": "2026-10-26T09:31:14.436830822Z",
"provider": "osv",
"upstream": [
"CVE-2026-47783"
],
"references": [
"https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1783629498.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-47783"
]
},
"related_cves": [
{
"value": "CVE-2026-47783",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 447529,
"published_at": "2026-07-09T20:38:35+00:00"
}