PatchTheCVECVE-2021-23718: The package ssrf-agent before 1.0.5 are vulnerable to Server-side Request Forgery (SSRF) via the defaultIpChec
CVE-2021-23718 is a medium-severity flaw (CVSS 6.5) affecting ssrf-agent. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The package ssrf-agent before 1.0.5 are vulnerable to Server-side Request Forgery (SSRF) via the defaultIpChecker function. It fails to properly validate if the IP requested is private.
Why this priority
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.5 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 1.6% (top 24%) |
| CISA exploited list | No |
| Weakness | CWE-918 |
| Published | 2021-11-22 |
| 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-2021-23718?
ssrf-agent: upgrade to 1.0.5. Exact commands for each OS are on this page.
Is CVE-2021-23718 being exploited?
CVE-2021-23718 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-2021-23718 affect?
CVE-2021-23718 affects ssrf-agent. Severity is medium (CVSS 6.5). The package ssrf-agent before 1.0.5 are vulnerable to Server-side Request Forgery (SSRF) via the defaultIpChecker function. It fails to properly validate if the IP requested is private.
How urgent is CVE-2021-23718?
Priority 47/100. Public exploit reference