The native inference process that Elasticsearch uses to evaluate uploaded machine learning models accepts a model operation that computes a memory address from an offset supplied inside the model, without validating that the offset stays within the bounds of the underlying storage. A user with the privileges required to upload and deploy a trained model can craft a model that reads and writes memory outside the intended allocation. The result is heap corruption that crashes the inference process, and, with sufficient control over the heap layout, could allow arbitrary code execution in the context of that process.
CVE-2026-72642
Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-13. a secondary CVSS source baseline 8.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(high)
- EG Risk
- 40(Track)EG Risk 40/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity88% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 26%
- KEV
- Not listed
Published
August 13, 2026
Last Modified
August 14, 2026
Advisory Details (1)
Auto-updated Aug 13, 2026Elasticsearch 8.19.20, 9.4.5, 9.5.1 Security Update (ESA-2026-123) - Security Announcements - Discuss the Elastic Stack
https://discuss.elastic.co/t/elasticsearch-8-19-20-9-4-5-9-5-1-security-update-esa-2026-123/389504Vendor Advisories for CVE-2026-72642(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 29× in last 7d / 37× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-21 01:23 UTCEG score recompute
- 2026-08-21 01:23 UTCGHSA enrichment
- 2026-08-20 22:56 UTCEPSS rescore
- 2026-08-20 12:48 UTCGHSA enrichment
- 2026-08-20 00:12 UTCEG score recompute
- 2026-08-20 00:12 UTCGHSA enrichment
- 2026-08-19 17:04 UTCEPSS rescore
- 2026-08-19 11:36 UTCGHSA enrichment
- 2026-08-18 22:59 UTCEG score recompute
- 2026-08-18 22:59 UTCGHSA enrichment
- 2026-08-18 13:49 UTCEPSS rescore
- 2026-08-18 13:49 UTCEPSS rescore
- 2026-08-18 10:24 UTCGHSA enrichment
- 2026-08-17 21:47 UTCEG score recompute
- 2026-08-17 21:46 UTCGHSA enrichment
- 2026-08-17 13:47 UTCEPSS rescore
- 2026-08-17 09:11 UTCGHSA enrichment
- 2026-08-16 20:35 UTCEG score recompute
- 2026-08-16 20:35 UTCGHSA enrichment
- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-16 07:59 UTCEG score recompute
- 2026-08-16 07:59 UTCGHSA enrichment
- 2026-08-16 02:15 UTCEPSS rescore
- 2026-08-15 19:24 UTCGHSA enrichment
Show 12 moreShow fewer
- 2026-08-15 06:48 UTCEG score recompute
- 2026-08-15 06:48 UTCGHSA enrichment
- 2026-08-15 01:31 UTCEPSS rescore
- 2026-08-14 18:00 UTCGHSA enrichment
- 2026-08-14 05:24 UTCEG score recompute
- 2026-08-14 05:24 UTCGHSA enrichment
- 2026-08-14 04:24 UTCEG score recompute
- 2026-08-14 04:24 UTCGHSA enrichment
- 2026-08-13 20:21 UTCEG score recompute
- 2026-08-13 19:47 UTCEG score recompute
- 2026-08-13 19:22 UTCEG score recompute
- 2026-08-13 19:21 UTCMITRE cvelistV5first tracked
Frequently asked(5)
What is CVE-2026-72642?
When was CVE-2026-72642 disclosed?
Is CVE-2026-72642 actively exploited?
What is the CVSS score of CVE-2026-72642?
How do I remediate CVE-2026-72642?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-72642
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