CVE & CISA-KEV Catalog

CVE-2026-21759

MEDIUM
4.3
CVSS v3
NVD

Description

HCL Hive is affected by an information exposure vulnerability where Swagger documentation was found exposed publicly. Although no sensitive information (e.g., credentials, PII) was discovered, exposing API documentation to unauthenticated users can increase the overall attack surface.

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityNone
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Exploit Intelligence

EPSS data unavailable for this CVE.

References

Other references1

Related Vulnerabilities

Other CWE-215 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-7569Critical9.61.7%--
CVE-2022-0721Medium6.51.4%-Fix
CVE-2019-3781High8.81.3%-Fix
CVE-2018-1002104Medium5.31.1%-Fix
CVE-2018-1191High8.80.7%-Fix
CVE-2025-34081High7.50.6%-Fix

Common questions

How do I fix CVE-2026-21759?

No published fix for CVE-2026-21759 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

How severe is CVE-2026-21759?

CVE-2026-21759 has a CVSS v3 base score of 4.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-08-24.