What’s Vulnerable › Vulnerabilities
CVE-2020-27218
- Severity: medium (CVSS 4.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 8.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-11-28 · updated 2026-06-17
- Weakness: CWE-226
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.
Affected products
- Apache Kafka: 2.7.0
- Apache Software Foundation Apache Spark: 2.4.8, 3.0.3
- Debian Linux: 10.0
- The Eclipse Foundation Eclipse Jetty: from 9.4.0 before 9.4.35; 10.0.0-alpha0, 10.0.0-alpha1, 10.0.0-beta0, 10.0.0-beta1, 10.0.0-beta2, 11.0.0-alpha0 (+2) — fixed in 9.4.35
- OnCommand System Manager 9.x: from 3.0 through 3.1.3
- NetApp Snap Creator Framework: all versions
- Oracle Blockchain Platform: before 21.1.2 — fixed in 21.1.2
- Oracle Communications Converged Application Server - Service Controller: 6.2
- Oracle Communications Offline Mediation Controller: 12.0.0.3.0
- Oracle Corporation Communications Pricing Design Center: 12.0.0.3.0
- Oracle Communications Services Gatekeeper: 7.0
- Oracle Communications Session Route Manager: from 8.0.0 through 8.2.4
- Oracle Corporation FLEXCUBE Private Banking: 12.0.0, 12.1.0
- Oracle Corporation Oracle Hyperion Infrastructure Technology: 11.1.2.6.0
- Oracle Corporation Oracle REST Data Services: before 20.4.3.050.1904 — fixed in 20.4.3.050.1904
- Oracle Corporation Oracle Retail EFTLink: 20.0.0
- Oracle Siebel Core - Automation: through 21.5
How to fix
Upgrade to a fixed version: The Eclipse Foundation Eclipse Jetty 9.4.35; Oracle Blockchain Platform 21.1.2; Oracle Corporation Oracle REST Data Services 20.4.3.050.1904. Check the vendor advisory for mitigations.
References
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=568892
- https://github.com/eclipse/jetty.project/security/advisories/GHSA-86wm-rrjm-8wh8
- https://lists.apache.org/thread.html/r00858fe27ee35ac8fa0e1549d67e0efb789d63b791b5300390bd8480%40%3Cjira.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r01806ad8c9cb0590584baf5b1a60237ad92e4ad5bba082ca04d98179%40%3Creviews.spark.apache.org%3E
- https://lists.apache.org/thread.html/r05b7ffde2b8c180709e14bc9ca036407bea3ed9f09b32c4705d23a4a%40%3Cjira.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r078c1203e48089b2c934b9f86b61bebe8c049e0ea6273b124f349988%40%3Cissues.hbase.apache.org%3E
- https://lists.apache.org/thread.html/r0d2de2ab5558da68b504bd30db74da1d97dc152a857f5b7e462288ab%40%3Cissues.spark.apache.org%3E
- https://lists.apache.org/thread.html/r153fbefc27a1b2033692f32ef728ca909a7c7bcc1d21b6c35b38bdd5%40%3Creviews.spark.apache.org%3E
- https://lists.apache.org/thread.html/r15500b77c52390e2ec048cea4a6b45edf907ea61cd13259193ff8601%40%3Creviews.spark.apache.org%3E
- https://lists.apache.org/thread.html/r186748e676e5aeb4eb603361e6367555ae4daecbde55cfd69fa68ec6%40%3Cissues.hbase.apache.org%3E
- https://lists.apache.org/thread.html/r1dd302323c6fe1a542d0371de66a484918fa6c2831ae70d924974bea%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r22776d06582985cca5bd2a92519a2b13b4cae2d8e087318da03c036d%40%3Cnotifications.zookeeper.apache.org%3E
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