CVE-2022-2048Network attack vector

Service interruption via blocking HTTP/2 error responses

Published Jul 7, 2022 · Updated Aug 3, 2024

Denial of service in Eclipse Jetty HTTP/2 server versions through 9.4.46, 10.0.9, and 11.0.9 allows remote attackers to halt service. The HTTP/2 error path writes a blocking error response from a selector thread; exhausted flow control or TCP congestion leaves that thread blocked. Repeating the condition across every selector thread prevents legitimate requests from being processed, without affecting confidentiality or integrity.

CVSS severity7.5
High
EPSS probability2.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Eclipse Jetty HTTP/2 server versions through 9.4.46, 10.0.9, and 11.0.9 allows remote attackers to halt service. The HTTP/2 error path writes a blocking error response from a selector thread; exhausted flow control or TCP congestion leaves that thread blocked. Repeating the condition across every selector thread prevents legitimate requests from being processed, without affecting confidentiality or integrity.

The record

CVE
CVE-2022-2048
Published
Jul 7, 2022
Updated
Aug 3, 2024
Vendor
The Eclipse Foundation
Product
Eclipse Jetty
Classifications
CWE-664, CWE-410, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 7, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.0 <unspecified
  2. Affected versionversion=11.0.0 <unspecified
  3. Affected versionversion=9.4.0 <unspecified
  4. Affected versionversion=unspecified <=10.0.9
  5. Affected versionversion=unspecified <=11.0.9
  6. Affected versionversion=unspecified <=9.4.46

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Eclipse Foundation · Eclipse Jettyversion=10.0.0 <unspecified; version=11.0.0 <unspecified; version=9.4.0 <unspecified; version=unspecified <=10.0.9; version=unspecified <=11.0.9; version=unspecified <=9.4.46

Published CVSS scores

7.5GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-664Improper Control of a Resource Through its Lifetime
CWE-410Insufficient Resource Pool
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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