Security readout for executives and security teams
Apache Livy 0.7.0-incubating has a cross-site scripting flaw in session names. A malicious user could use it to view other users' session logs and results or run jobs under their privileges. The issue is fixed in Livy 0.7.1-incubating. Exposure is limited to organizations running Apache Livy 0.7.0-incubating. Risk is higher where Livy is reachable by multiple users or tied to sensitive Spark workloads and shared session results. Prioritize remediation where Livy supports shared analytics, production Spark jobs, or sensitive data. The affected version scope is narrow, but the stated impact includes data exposure and privilege misuse across users. Mitigation focus: Upgrade Apache Livy 0.7.0-incubating to 0.7.1-incubating or later vendor-guided release.; Restrict Livy access to trusted users until remediation is complete.; Review Livy session logs for suspicious session names and cross-user activity..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-26544 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/apache/incubator-livy/commit/4d8a912699683b973eee76d4e91447d769a0cb0dCVE reference · x_refsource_MISC
- https://lists.apache.org/thread.html/r2db14e7fd1e5ec2519e8828d43529bad623d75698cc7918af3a3f3ed%40%3Cuser.livy.apache.org%3ECVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.