CVE-2020-27223CWE-407

In Eclipse Jetty 9.4.6.v20170531 to 9.4.36.v20210114 (inclusive), 10.0.0, and 11.0.0 when Jetty handles a request containing multiple Accept headers with a…

Medium · published February 26, 2021

Patch now

High probability of exploitation

CVSS calls it medium at 5.2. It sits in the 99.6th percentile for exploit probability.

CVSS v3.1
5.2
EPSS
78%
Percentile
99.6
In the wild
Unconfirmed
What it is

In Eclipse Jetty 9.4.6.v20170531 to 9.4.36.v20210114 (inclusive), 10.0.0, and 11.0.0 when Jetty handles a request containing multiple Accept headers with a large number of “quality” (i.e. q) parameters, the server may enter a denial of service (DoS) state due to high CPU usage processing those quality values, resulting in minutes of CPU time exhausted processing those quality values.

The record
Technical detail
CVSS v3.1
5.2 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.78031 · 99.6th percentile
Weakness
CWE-407 · Inefficient Algorithmic Complexity
Published
2021-02-26T21:55Z
EPSS history
Timeline
  • 26 FEB 21:55Z
    In Eclipse Jetty 9.4.6.v20170531 to 9.4.36.v20210114 (inclusive), 10.0.0, and 11.0.0 when Jetty handles a request containing multiple Accept headers with a…
    cvelistv5