PatchTheCVECVE-2021-23419: This affects the package open-graph before 0.2.6
CVE-2021-23419 is a high-severity flaw (CVSS 7.3) affecting open-graph. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
This affects the package open-graph before 0.2.6. The function parse could be tricked into adding or modifying properties of Object.prototype using a __proto__ or constructor payload.
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.3 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.1% (top 34%) |
| CISA exploited list | No |
| Weakness | CWE-1321 |
| Published | 2021-08-08 |
| 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-2021-23419?
open-graph: upgrade to 0.2.6. Exact commands for each OS are on this page.
Is CVE-2021-23419 being exploited?
CVE-2021-23419 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-2021-23419 affect?
CVE-2021-23419 affects open-graph. Severity is high (CVSS 7.3). This affects the package open-graph before 0.2.6. The function parse could be tricked into adding or modifying properties of Object.prototype using a __proto__ or constructor payload.
How urgent is CVE-2021-23419?
Priority 52/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action