XSS in Apache Livy
CVE-2021-26544
Livy server version 0.7.0-incubating (only) is vulnerable to a cross site scripting issue in the session name. A malicious user could use this flaw to access logs and results of other users' sessions and run jobs with their privileges. This issue is fixed in Livy 0.7.1-incubating.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.028 (85.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Apache Livy — versions 0.7.0-incubating
- Apache Software Foundation Livy (Incubating) — versions Apache Livy (Incubating) 0.7.0-incubating
Weakness classification (CWE)
References
- security@apache.org (Patch, Third Party Advisory, x_refsource_MISC)
- security@apache.org (Patch, x_refsource_MISC, Vendor Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST, Patch, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-26544?
- CVE-2021-26544 is a medium-severity vulnerability in Apache Livy, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-02-20.
- How severe is CVE-2021-26544?
- Medium severity. CVSS v3 base score is 5.4 out of 10.