MediumFix available
keystone — security advisory
An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.
- Products
- keystone
- Affected versions
- Not specified
- Fixed versions
- 2:17.0.0~rc2-1
- CVEs
- CVE-2020-12692
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 13:22 UTC · Revision 1
Source evidence
An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.
osv:DEBIAN-CVE-2020-12692
keystone
Fixed versions: 2:17.0.0~rc2-1
keystone
Fixed versions: 2:17.0.0~rc2-1
keystone
Fixed versions: 2:17.0.0~rc2-1
Complete source record
{
"id": "111c2a9a1654cfea3189418968f16f689010ec4de8da80b77ddab50b82a7cde8",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-12692",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-12692",
"summary": "An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.",
"evidence": "osv:DEBIAN-CVE-2020-12692",
"products": [
{
"name": {
"value": "keystone",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2:17.0.0~rc2-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "keystone",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2:17.0.0~rc2-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "keystone",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2:17.0.0~rc2-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2020-12692",
"aliases": [
"DEBIAN-CVE-2020-12692"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2:17.0.0~rc2-1"
}
]
}
],
"package": {
"name": "keystone",
"purl": "pkg:deb/debian/keystone?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12692.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2:17.0.0~rc2-1"
}
]
}
],
"package": {
"name": "keystone",
"purl": "pkg:deb/debian/keystone?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12692.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2:17.0.0~rc2-1"
}
]
}
],
"package": {
"name": "keystone",
"purl": "pkg:deb/debian/keystone?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12692.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:02:25.398923865Z",
"provider": "osv",
"upstream": [
"CVE-2020-12692"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-12692"
]
},
"related_cves": [
{
"value": "CVE-2020-12692",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 452132,
"published_at": "2020-05-07T00:15:10.987+00:00"
}