CVE-2018-11765

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-09-30 · updated 2026-06-17
Weakness: CWE-287

Description

In Apache Hadoop versions 3.0.0-alpha2 to 3.0.0, 2.9.0 to 2.9.2, 2.8.0 to 2.8.5, any users can access some servlets without authentication when Kerberos authentication is enabled and SPNEGO through HTTP is not enabled.

Affected products

Apache Software Foundation Apache Hadoop: from 2.8.0 through 2.8.5; from 2.9.0 through 2.9.2; 3.0.0, 3.0.0-alpha2

References

https://lists.apache.org/thread.html/r17d94d132b207dad221595fd8b8b18628f5f5ec7e3f5be939ecd8928%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/r2c7f899911a04164ed1707083fcd4135f8427e04778c87d83509b0da%40%3Cgeneral.hadoop.apache.org%3E
https://lists.apache.org/thread.html/r46447f38ea8c89421614e9efd7de5e656186d35e10fc97cf88477a01%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/r4dddf1705dbedfa94392913b2dad1cd2d1d89040facd389eea0b3510%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/r74825601e93582167eb7cdc2f764c74c9c6d8006fa90018562fda60f%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/r79b15c5b66c6df175d01d7560adf0cd5c369129b9a161905e0339927%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/rb21df54a4e39732ce653d2aa5672e36a792b59eb6717f2a06bb8d02a%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/rb241464d83baa3749b08cd3dabc8dba70a9a9027edcef3b5d4c24ef4%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/rbe25cac0f499374f8ae17a4a44a8404927b56de28d4c41940d82b7a4%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/reea5eb8622afbfbfca46bc758f79db83d90a3263a906c4d1acba4971%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/rf9dfa8b77585c9227db9637552eebb2ab029255a0db4eb76c2b6c4cf%40%3Cdev.druid.apache.org%3E
https://security.netapp.com/advisory/ntap-20201016-0005/

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