Apache Livy (Incubating) is vulnerable to cross site scripting
Priority LOW 30CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
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.
Why it matters now
EPSS 0.02816 86th percentileScored 2026-11-07
Fix Fixed org.apache.livy:livy-server (Maven): 0.7.1-incubating
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache Livy (Incubating) | Apache Livy (Incubating) 0.7.0-incubating | — | No fix listed | CNA |
| — | org.apache.livy:livy-server (Maven) | 0.7.0-incubating to before 0.7.1-incubating | 0.7.1-incubating | Patch available | GHSA-74qp-233x-p5j8 |
- Apache Livy (Incubating) VendorApache Affected Apache Livy (Incubating) 0.7.0-incubating Fixed in — No fix listed CNA
- org.apache.livy:livy-server (Maven) Vendor— Affected 0.7.0-incubating to before 0.7.1-incubating Fixed in 0.7.1-incubating Patch available GHSA-74qp-233x-p5j8
Remediation
- Fix · GHSA-74qp-233x-p5j8 org.apache.livy:livy-server (Maven) Fixed in 0.7.1-incubating Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-26544
- 2026-10-03 Alias added: GHSA-74qp-233x-p5j8
References
Patch 3
- https://github.com/apache/incubator-livy/commit/4d8a912699683b973eee76d4e91447d769a0cb0d
- https://lists.apache.org/thread.html/r2db14e7fd1e5ec2519e8828d43529bad623d75698cc7918af3a3f3ed%40%3Cuser.livy.apache.org%3E
- [oss-security] 20210220 CVE-2021-26544: Apache Livy (Incubating) is vulnerable to cross site scripting
More Apache Livy vulnerabilities
- TI-2025-40731 Apache Livy: Unauthorized directory access CVSS 3.1MEDIUM 6.3
- TI-2025-37389 Apache Livy: Restrict file access CVSS 3.1MEDIUM 6.3
Sources
- CVE-2021-26544 · CVE Program
- CVE-2021-26544 · NVD
- FIRST EPSS
- GHSA-74qp-233x-p5j8 · GitHub Advisory Database · CC BY 4.0
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