CVE-2026-72647
published 2026-08-13CVE-2026-72647: Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Nested Payloads (CAPEC-230). An authenticated user…
PriorityP335medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
0.42%
34.3th percentile
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Nested Payloads (CAPEC-230). An authenticated user holding only read privileges on a single index can submit one specially crafted search request whose deeply nested structure is processed without a depth limit, exhausting the thread stack and terminating the affected node.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| elastic | elasticsearch | >= 8.0.0 < 8.19.20 | 8.19.20 |
| elastic | elasticsearch | 8.0.0 – 8.19.19 | — |
| elastic | elasticsearch | >= 9.0.0 < 9.4.5 | 9.4.5 |
| elastic | elasticsearch | 9.0.0 – 9.4.4 | — |
| rhoai | odh-feature-server-rhel9 | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
vendor_redhat6.5MEDIUM
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VulDB
Elastic Elasticsearch Search recursion (WID-SEC-2026-2841)
vuldb·2026-08-16·CVSS 6.5
CVE-2026-72647 [MEDIUM] Elastic Elasticsearch Search recursion (WID-SEC-2026-2841)
A vulnerability was found in Elastic Elasticsearch. It has been declared as problematic. This impacts an unknown function of the component Search Handler. Executing a manipulation can lead to uncontrolled recursion.
The identification of this vulnerability is CVE-2026-72647. The attack may be launched remotely. There is no exploit available.
GHSA
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Nested Payloads (CAPEC-230).
ghsa_unreviewed·2026-08-13
CVE-2026-72647 [MEDIUM] CWE-674 Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Nested Payloads (CAPEC-230).
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Nested Payloads (CAPEC-230). An authenticated user holding only read privileges on a single index can submit one specially crafted search request whose deeply nested structure is processed without a depth limit, exhausting the thread stack and terminating the affected node.
Red Hat
Elasticsearch: Elasticsearch: Denial of Service via uncontrolled recursion in search requests
vendor_redhat·2026-08-13·CVSS 6.5
CVE-2026-72647 [MEDIUM] CWE-606 Elasticsearch: Elasticsearch: Denial of Service via uncontrolled recursion in search requests
Elasticsearch: Elasticsearch: Denial of Service via uncontrolled recursion in search requests
A flaw was found in Elasticsearch. An authenticated user with read privileges on a single index can submit a specially crafted search request. This request, containing deeply nested serialized data, is processed without a depth limit, leading to uncontrolled recursion. This can exhaust the thread stack and terminate the affected node, resulting in a denial of service.
Statement: This flaw has a Moderate impact. An uncontrolled recursion vulnerability exists in Elasticsearch's search API retriever framework, where a deeply nested search request is processed without a depth limit. A remote, authenticated attacker with read-level index access can send a specially crafted search request that exhaust
No detection rules found.
No public exploits indexed.
2026-08-13
Published