PatchTheCVECVE-2021-22100: In cloud foundry CAPI versions prior to 1.122, a denial-of-service attack in which a developer can push a serv
CVE-2021-22100 is a medium-severity flaw (CVSS 5.3) affecting capi-release, cf-deployment. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
In cloud foundry CAPI versions prior to 1.122, a denial-of-service attack in which a developer can push a service broker that (accidentally or maliciously) causes CC instances to timeout and fail is possible. An attacker can leverage this vulnerability to cause an inability for anyone to push or manage apps.
Why this priority
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.3 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.9% (top 40%) |
| CISA exploited list | No |
| Weakness | CWE-400 |
| Published | 2022-03-25 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-22100?
capi-release: upgrade to 1.122.0; cf-deployment: upgrade to 17.1.0. Exact commands for each OS are on this page.
Is CVE-2021-22100 being exploited?
CVE-2021-22100 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-22100 affect?
CVE-2021-22100 affects capi-release, cf-deployment. Severity is medium (CVSS 5.3). In cloud foundry CAPI versions prior to 1.122, a denial-of-service attack in which a developer can push a service broker that (accidentally or maliciously) causes CC instances to timeout and fail is possible. An attacker can leverage this v
How urgent is CVE-2021-22100?
Priority 39/100. Remotely exploitable, no login, no user action
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