Information disclosure in The Eclipse Foundation Jetty

CVE-2021-28164

In Eclipse Jetty 9.4.37.v20210219 to 9.4.38.v20210224, the default compliance mode allows requests with URIs that contain %2e or %2e%2e segments to access protected resources within the WEB-INF directory. For example a request to /context/…

Vulnerability class: Information Disclosure

EPSS: 0.935 (99.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-28164?
CVE-2021-28164 is a medium-severity vulnerability in The Eclipse Foundation Jetty, classified under Information Disclosure. CVSS score: 5.3/10. Published 2021-04-01.
How severe is CVE-2021-28164?
Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2021-28164 known to be exploited?
26 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.