PatchTheCVECVE-2020-7702: All versions of package templ8 are vulnerable to Prototype Pollution via the parse function.
CVE-2020-7702 is a critical-severity flaw (CVSS 9.8) affecting templ8. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
All versions of package templ8 are vulnerable to Prototype Pollution via the parse function.
Why this priority
- Critical severity
- Public exploit reference
- Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.9% (top 20%) |
| CISA exploited list | No |
| Weakness | CWE-1321 |
| Published | 2020-08-17 |
| 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-2020-7702?
templ8: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2020-7702 being exploited?
CVE-2020-7702 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-2020-7702 affect?
CVE-2020-7702 affects templ8. Severity is critical (CVSS 9.8). All versions of package templ8 are vulnerable to Prototype Pollution via the parse function.
How urgent is CVE-2020-7702?
Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action