CVE-2026-63140
CVE CVE-2026-63140EUVD EUVD-2026-46433Published 2026-07-21T21:04:01.000ZLast changed 2026-07-22T19:40:22.000ZCVSS 6.5
What the advisory describes
Reachable Assertion (CWE-617) in Elasticsearch can lead to denial of service via Input Data Manipulation (CAPEC-153). A specially crafted search request containing a null value in a specific query clause causes an internal assertion to be raised during query parsing. Because Elasticsearch treats assertion failures as fatal errors, this terminates the affected node process. A low-privileged authenticated user with read access to at least one index can exploit this condition with a single request to cause a node to terminate, disrupting search availability. In a single-node deployment this fully stops Elasticsearch; in a multi-node cluster it reduces cluster capacity for each affected node.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Elastic — Elasticsearch 8.0.0 ≤8.19.18; 9.4.0 ≤9.4.3; 9.0.0 ≤9.3.7
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Elastic — Elasticsearch
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