Vulnerability · Published Sep 1, 2022 · Assigned by redhat
CVE-2022-2764
Medium 4.9
In plain English
A medium-severity uncontrolled resource consumption in undertow. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)4.9Medium
Exploit odds (30 days)0.9%top 40.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in Undertow. Denial of service can be achieved as Undertow server waits for the LAST_CHUNK forever for EJB invocations.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:14 | undertow | 2.2.21-1 | DEBIAN-CVE-2022-2764 |
| Ubuntu:25.10 | undertow | no fix listed | UBUNTU-CVE-2022-2764 |
| Ubuntu:26.04:LTS | undertow | no fix listed | UBUNTU-CVE-2022-2764 |
| Ubuntu:26.10 | undertow | no fix listed | UBUNTU-CVE-2022-2764 |
Affected products (as reported)
Weakness: CWE-400