Elasticsearch Uncontrolled Recursion (CWE674) in Serialized Data for DoS
CVE-2026-115290 Published on November 3, 2026
Uncontrolled Recursion in Elasticsearch Leading to Denial of Service
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Nested Payloads (CAPEC-230). An unauthenticated attacker with network access to the remote cluster server interface of a node can send a specially crafted request that causes the node to terminate. No credentials are required. The attacker can repeat the request against each reachable node.
Vulnerability Analysis
CVE-2026-115290 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Stack Exhaustion Vulnerability?
The product does not properly control the amount of recursion which takes place, consuming excessive resources, such as allocated memory or the program stack.
CVE-2026-115290 has been classified to as a Stack Exhaustion vulnerability or weakness.
Products Associated with CVE-2026-115290
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Affected Versions
Elasticsearch:- Version 8.10.0, <= 8.19.23 is affected.
- Version 9.0.0, <= 9.4.8 is affected.
- Version 9.5.0, <= 9.5.5 is affected.