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No exploitation reportedFix available

CVE-2021-3563

No exploitation reported by the sources we read.

  • Published2022-08-26
  • WeaknessCWE-863

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A flaw was found in openstack-keystone. Only the first 72 characters of an application secret are verified allowing attackers bypass some password complexity which administrators may be counting on. The highest threat from this vulnerability is to data confidentiality and integrity.

Timeline

dates in UTC
  1. 2022-08-2616:15CVE publishedNVD

Versions per branch

OSV · NVD
keystone
BranchAffectedFixed in
21.0≤ 21.0.0no fix published
Redhat openstack platform
BranchAffectedFixed in
10.0= 10.0no fix published
13.0= 13.0no fix published
16.1= 16.1no fix published
16.2= 16.2no fix published
Debian debian linux
BranchAffectedFixed in
10.0= 10.0no fix published
11.0= 11.0no fix published

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • keystoneUbuntu:Pro:20.04:LTSall versions · no fixed version listed
  • keystoneUbuntu:Pro:18.04:LTSall versions · no fixed version listed
  • keystoneUbuntu:Pro:16.04:LTSall versions · no fixed version listed
  • keystoneUbuntu:22.04:LTSall versions · fixed in 2:21.0.1-0ubuntu2.1
  • keystoneDebian:14all versions · fixed in 2:23.0.0-3
  • keystoneDebian:13all versions · fixed in 2:23.0.0-3
  • keystoneDebian:12all versions · no fixed version listed
  • keystoneDebian:10all versions · fixed in 2:14.2.0-0+deb10u2

Vendor advisories

  • CVE-2021-3563 Red Hat Product Security13 known affected

    Keystone: Verification of application credentials is silently length-limited

    openstack-keystone as a component of Red Hat OpenStack Platform 10 (Newton) · openstack-keystone.src as a component of Red Hat OpenStack Platform 10 (Newton) · python-keystone as a component of Red Hat OpenStack Platform 10 (Newton) · +10 more

Full record on NVD

Fix

  1. No fix available, says the vendor Red Hat Product Security CVE-2021-3563 · 2 productsAffected
  2. No fix planned, says the vendor Red Hat Product Security CVE-2021-3563 · 9 productsOut of support scope
  3. No fix planned, says the vendor Red Hat Product Security CVE-2021-3563 · 2 productsWill not fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
2022-08-26
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-cc99-whm5-mmq3

Frequently asked questions

What is CVE-2021-3563?

A flaw was found in openstack-keystone. Only the first 72 characters of an application secret are verified allowing attackers bypass some password complexity which administrators may be counting on. The highest threat from this vulnerability is to data confidentiality and integrity.

Is CVE-2021-3563 actively exploited?

Active exploitation of CVE-2021-3563 has not been confirmed. Its EPSS score was 1.9% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-3563?

CVE-2021-3563 has a CVSS v3 base score of 7.4 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

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Sources for this record