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No exploitation reportedAwaiting NVD analysis

CVE-2026-115290

Uncontrolled Recursion in Elasticsearch Leading to Denial of Service

No exploitation reported by the sources we read.

  • Published2026-11-03
  • WeaknessCWE-674

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2026-11-0316:43CVE publishedCNA

Observed activity

isMalicious corpus · updated 2026-11-03 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-115290?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-115290?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

Products declared by the CNA

As elastic, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • Elasticsearchother versions: not affected
    Affected
    • ≥ 8.10.0, ≤ 8.19.23no fix statedsemver
    • ≥ 9.0.0, ≤ 9.4.8no fix statedsemver
    • ≥ 9.5.0, ≤ 9.5.5no fix statedsemver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-03

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-115290 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-11-03
  • CISA-ADPSSVC decisionnone2026-11-03
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.17.52026-11-03
  • CNAweakness (CWE)CWE-6742026-11-03

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2026-11-03
Last Modified
2026-11-03
NVD status
Received

Frequently asked questions

What is CVE-2026-115290?

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.

Is CVE-2026-115290 actively exploited?

Active exploitation of CVE-2026-115290 has not been confirmed.

What is the CVSS score for CVE-2026-115290?

CVE-2026-115290 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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