CVE-2026-63140

The record

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.

Affected packages

Related vulnerabilities

• CVE-2026-119339 Tesseract is an open source OCR engine. CWE-617
• CVE-2026-119139 Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a leftover assertion in… CWE-617
• CVE-2026-119142 Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service… CWE-617
• CVE-2026-119138 Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service… CWE-617
• CVE-2026-119135 Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 panics when the host reads a… CWE-617
• CVE-2026-119132 Wasmtime from 49.0.0 before 49.0.3 contains a denial-of-service vulnerability that allows… CWE-617
• CVE-2026-116467 A security flaw has been discovered in ggml-org llama.cpp up to 0.7.0. CWE-617
• CVE-2026-115914 vLLM is an inference and serving engine for large language models. CWE-617