CVE-2026-49096Uncaught Exception in Kibana Cases Leading to Denial of Service
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No exploitation reported and no EPSS estimate yet.
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Uncaught Exception (CWE-248) in Kibana Cases can lead to denial of service via Input Data Manipulation (CAPEC-153). Malformed link syntax stored in a case comment was not rejected or sanitized when the comment was later formatted for display, and the resulting unhandled error prevented the affected case from being displayed. An authenticated user holding privileges to comment on a case could store such a comment, after which that case became inaccessible to every user who opened it until the stored comment was removed.
- CVSS
- 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- Weakness (CWE)
- CWE-248
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- elastic
- NVD analysis
- Analyzed
- Record last updated
- Aug 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Elastic Kibana elastic:kibana (from the name) | from 8.0.0 through 8.19.19; from 9.0.0 through 9.3.4; 9.4.0; 9.4.1 | CNA record |
elastic kibana elastic:kibana | from 8.0.0 before 8.19.20; from 9.0.0 before 9.3.5; from 9.4.0 before 9.4.2 | NVD |
References
- https://discuss.elastic.co/t/kibana-8-19-20-9-3-5-9-4-2-security-update-esa-2026-136/389492vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.