HOMEVULNERABILITIESCVE-2020-27218
MEDIUM

CVE-2020-27218

CWE-226Published: November 28, 2020· Updated: Jun 17, 2026

4.8
CVSS v3.1

Official Description

In Eclipse Jetty version 9.4.0.RC0 to 9.4.34.v20201102, 10.0.0.alpha0 to 10.0.0.beta2, and 11.0.0.alpha0 to 11.0.0.beta2, if GZIP request body inflation is enabled and requests from different clients are multiplexed onto a single connection, and if an attacker can send a request with a body that is received entirely but not consumed by the application, then a subsequent request on the same connection will see that body prepended to its body. The attacker will not see any data but may inject data into the body of the subsequent request.

NVD Source

Technical Analysis

CVE-2020-27218 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

Affected Vendors & Products

Apache2 product(s)
kafkaspark
Debian1 product(s)
debian linux
eclipse1 product(s)
jetty
netapp2 product(s)
oncommand system managersnap creator framework
Oracle11 product(s)
blockchain platformcommunications converged application server - service controllercommunications offline mediation controllercommunications pricing design centercommunications services gatekeepercommunications session route managerflexcube private bankinghyperion infrastructure technologyrest data servicesretail eftlinksiebel core - automation
Source: NVD CPE · 21 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://www.oracle.com//security-alerts/cpujul2021.html
PATCHhttps://www.oracle.com/security-alerts/cpuApr2021.html
PATCHhttps://www.oracle.com/security-alerts/cpuapr2022.html
PATCHhttps://www.oracle.com/security-alerts/cpuoct2021.html
PATCHhttps://www.oracle.com//security-alerts/cpujul2021.html
PATCHhttps://www.oracle.com/security-alerts/cpuApr2021.html
PATCHhttps://www.oracle.com/security-alerts/cpuapr2022.html
PATCHhttps://www.oracle.com/security-alerts/cpuoct2021.html
ADVISORYhttps://bugs.eclipse.org/bugs/show_bug.cgi?id=568892
ADVISORYhttps://github.com/eclipse/jetty.project/security/advisories/GHSA-86wm-rrjm-8wh8
ADVISORYhttps://lists.debian.org/debian-lts-announce/2023/10/msg00045.html
ADVISORYhttps://security.netapp.com/advisory/ntap-20201218-0003/
ADVISORYhttps://bugs.eclipse.org/bugs/show_bug.cgi?id=568892
ADVISORYhttps://github.com/eclipse/jetty.project/security/advisories/GHSA-86wm-rrjm-8wh8
ADVISORYhttps://lists.debian.org/debian-lts-announce/2023/10/msg00045.html
ADVISORYhttps://security.netapp.com/advisory/ntap-20201218-0003/

All References (234)

→
https://bugs.eclipse.org/bugs/show_bug.cgi?id=568892Issue Tracking · Vendor Advisory
→
https://github.com/eclipse/jetty.project/security/advisories/GHSA-86wm-rrjm-8wh8Third Party Advisory
→
https://lists.apache.org/thread.html/r00858fe27ee35ac8fa0e1549d67e0efb789d63b791b5300390bd8480%40%3Cjira.kafka.apache.org%3EIssue Tracking
→
https://lists.apache.org/thread.html/r01806ad8c9cb0590584baf5b1a60237ad92e4ad5bba082ca04d98179%40%3Creviews.spark.apache.org%3EIssue Tracking
→
https://lists.apache.org/thread.html/r05b7ffde2b8c180709e14bc9ca036407bea3ed9f09b32c4705d23a4a%40%3Cjira.kafka.apache.org%3EIssue Tracking
→
https://lists.apache.org/thread.html/r078c1203e48089b2c934b9f86b61bebe8c049e0ea6273b124f349988%40%3Cissues.hbase.apache.org%3EIssue Tracking
→
https://lists.apache.org/thread.html/r0d2de2ab5558da68b504bd30db74da1d97dc152a857f5b7e462288ab%40%3Cissues.spark.apache.org%3EIssue Tracking
→
https://lists.apache.org/thread.html/r153fbefc27a1b2033692f32ef728ca909a7c7bcc1d21b6c35b38bdd5%40%3Creviews.spark.apache.org%3EIssue Tracking
→
https://lists.apache.org/thread.html/r15500b77c52390e2ec048cea4a6b45edf907ea61cd13259193ff8601%40%3Creviews.spark.apache.org%3EIssue Tracking
→
https://lists.apache.org/thread.html/r186748e676e5aeb4eb603361e6367555ae4daecbde55cfd69fa68ec6%40%3Cissues.hbase.apache.org%3EIssue Tracking
→
https://lists.apache.org/thread.html/r1dd302323c6fe1a542d0371de66a484918fa6c2831ae70d924974bea%40%3Cnotifications.zookeeper.apache.org%3EIssue Tracking
→
https://lists.apache.org/thread.html/r22776d06582985cca5bd2a92519a2b13b4cae2d8e087318da03c036d%40%3Cnotifications.zookeeper.apache.org%3EIssue Tracking
→
https://lists.apache.org/thread.html/r23ce6b8965e30808daa77a80fcd69833b1fc632d80465d0419eff619%40%3Cissues.zookeeper.apache.org%3EIssue Tracking
→
https://lists.apache.org/thread.html/r25a47cd06750ebb4b0f23a9b7a57c209702c8566a4c970a41ac088df%40%3Creviews.spark.apache.org%3EIssue Tracking
→
https://lists.apache.org/thread.html/r2a541f08bf5f847394297c13a5305c2f76c11e46504ce2a49653890a%40%3Creviews.spark.apache.org%3EIssue Tracking

Quick Facts

CVE IDCVE-2020-27218
CVSS Score4.8 / 10
SeverityMEDIUM
WeaknessCWE-226
CISA KEVNo
Affected5 vendor(s)
PublishedNov 28, 2020

Related CVEs (CWE-226)

CVE-2022-39393
8.6
CVE-2026-13585
8.2
CVE-2025-0647
7.9
CVE-2024-38275
7.5
CVE-2019-25560
7.5
CVE-2018-7166
7.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-27218 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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