CVE-2026-21756

HIGHPre-NVD 7.27.2—
EchelonGraph scoreHIGH confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-08-24. a secondary CVSS source baseline 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.2Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

HCL Hive is affected by a broken access control vulnerability which could allow an attacker or unauthorized user to introduce unverified, malicious, or broken code directly into production environments.

CVSS v3
7.2
EG Score
7.2(high)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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 computed
Severity72% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

August 24, 2026

Last Modified

August 24, 2026

Advisory Details (1)

Auto-updated Aug 24, 2026
No patch confirmed yet.
generic

Knowledge Article View HCL - Customer Support

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0131731

Vendor Advisories for CVE-2026-21756(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 17× in last 7d / 17× 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.

  1. 2026-08-27 16:07 UTCEG score recompute
  2. 2026-08-27 16:06 UTCGHSA enrichment
  3. 2026-08-27 14:25 UTCEPSS rescore
  4. 2026-08-27 03:47 UTCGHSA enrichment
  5. 2026-08-26 15:30 UTCEG score recompute
  6. 2026-08-26 15:30 UTCGHSA enrichment
  7. 2026-08-26 14:46 UTCEPSS rescore
  8. 2026-08-26 03:15 UTCGHSA enrichment
  9. 2026-08-25 14:57 UTCEG score recompute
  10. 2026-08-25 14:57 UTCGHSA enrichment
  11. 2026-08-25 13:48 UTCEPSS rescore
  12. 2026-08-25 02:40 UTCEG score recompute
  13. 2026-08-25 02:40 UTCGHSA enrichment
  14. 2026-08-24 14:24 UTCEG score recompute
  15. 2026-08-24 13:22 UTCEG score recompute
  16. 2026-08-24 12:58 UTCEG score recompute
  17. 2026-08-24 12:57 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-21756?
CVE-2026-21756 is a high vulnerability published on August 24, 2026. HCL Hive is affected by a broken access control vulnerability which could allow an attacker or unauthorized user to introduce unverified, malicious, or broken code directly into production environments.
When was CVE-2026-21756 disclosed?
CVE-2026-21756 was first published in the National Vulnerability Database on August 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21756 actively exploited?
CVE-2026-21756 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 76.1% of all scored CVEs.
What is the CVSS score of CVE-2026-21756?
CVE-2026-21756 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-21756?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21756, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-21756

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