PatchTheCVECVE-2020-7638: confinit through 0.3.0 is vulnerable to Prototype Pollution.The 'setDeepProperty' function could be tricked in
CVE-2020-7638 is a medium-severity flaw (CVSS 5.3) affecting confinit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
confinit through 0.3.0 is vulnerable to Prototype Pollution.The 'setDeepProperty' function could be tricked into adding or modifying properties of 'Object.prototype' using a '__proto__' payload.
Why this priority
- Public exploit reference
- 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 | 1.0% (top 37%) |
| CISA exploited list | No |
| Weakness | CWE-1321 |
| Published | 2020-04-06 |
| 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-2020-7638?
confinit: upgrade to newer than 0.3.0. Exact commands for each OS are on this page.
Is CVE-2020-7638 being exploited?
CVE-2020-7638 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-2020-7638 affect?
CVE-2020-7638 affects confinit. Severity is medium (CVSS 5.3). confinit through 0.3.0 is vulnerable to Prototype Pollution.The 'setDeepProperty' function could be tricked into adding or modifying properties of 'Object.prototype' using a '__proto__' payload.
How urgent is CVE-2020-7638?
Priority 44/100. Public exploit reference; Remotely exploitable, no login, no user action