Resource exhaustion in Redhat Keycloak

CVE-2020-10758

A vulnerability was found in Keycloak before 11.0.1 where DoS attack is possible by sending twenty requests simultaneously to the specified keycloak server, all with a Content-Length header value that exceeds the actual byte count of the r…

EPSS: 0.022 (80.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-10758?
CVE-2020-10758 is a high-severity vulnerability in Redhat Keycloak, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2020-09-16.
How severe is CVE-2020-10758?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-10758 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.