Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-22101

24
FAUCET Score

CVE-2021-22101 is an unauthenticated denial-of-service vulnerability affecting Cloud Controller versions prior to 1.118.0 in Cloud Foundry capi-release and cf-deployment. Unauthenticated attackers can exploit this by sending REST HTTP requests with label_selectors to V3 endpoints, generating large SQL queries that cause a denial of service. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network with low attack complexity and no user interaction, leading to a complete loss of availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.118.0CPE matchmatch criteria
cpe:2.3:a:cloudfoundry:capi-release:*:*:*:*:*:*:*:*
< 16.24.0CPE matchmatch criteria
cpe:2.3:a:cloudfoundry:cf-deployment:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 33rd percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cloudfoundry.org / blog/cve-2021-22101-cloud-controller-is-vulnerable-to-unauthenticated-denial-of-service
Vendor Advisory