Uncontrolled Recursion in Elasticsearch Leading to Denial of Service (Elastic Elasticsearch)

CVE-2026-72647
MEDIUM 6.5

At a glance

Source
NVD
EPSS
EPSS 0.42 % · percentile 36 ()
State
PUBLISHED
Published
Updated
Assigner
elastic
NVD status
Analyzed

Description

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.

Weaknesses (CWE)

  • CWE-674 — Uncontrolled Recursion

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Helastic
CVSS 3.1MEDIUM 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · security@elastic.co (Secondary)

European references

Affected configurations (NVD CPE)

Affected products

ProductVersions
Elastic · Elasticsearchaffected 8.0.0 ≤ 8.19.19 ; affected 9.0.0 ≤ 9.4.4

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD