CVE-2020-1938
CISA KEVPublished March 3, 2022 · Updated April 3, 2026
high
Official Description+
Apache Tomcat treats Apache JServ Protocol (AJP) connections as having higher trust than, for example, a similar HTTP connection. If such connections are available to an attacker, they can be exploited.
Affected Products
| Vendor | Product |
|---|---|
| Apache | Tomcat |
Patch Status
Patch by 2022-03-17
Recommended Actions
- Check if your systems use any of the affected products listed above.
- Apply vendor patches immediately if available.
- This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
- Monitor vendor advisories for updates and additional mitigations.
- Review logs for indicators of compromise related to CVE-2020-1938.