CVE-2026-87128: Vulnerability in the Oracle Hyperion Data Relationship Management product of Oracle Hyperion (component: Acces

This month

CRITICAL 9.1REMOTEDOWNGRADE

CVE-2026-87128 is a critical-severity flaw (CVSS 9.1) affecting hyperion data relationship management. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the Oracle Hyperion Data Relationship Management product of Oracle Hyperion (component: Access and security). The supported version that is affected is 11.2.26.0.000. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hyperion Data Relationship Management. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification acces

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-287, CWE-306
Published	2026-09-15
Last modified	2026-09-21

Publisher (CNA): Oracle · Vendor: oracle

Last updated 2026-09-21 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-15 20:18 UTCPublished CVE record published
2026-09-21 18:06 UTCUpdated Record last modified

oracle hyperion data relationship management DOWNGRADE

Affected: 11.2.26.0.000

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.2.26.0.000

1. Check installed version

apt-cache policy hyperion-data-relationship-management || rpm -q hyperion-data-relationship-management || hyperion-data-relationship-management --version

2. No fixed release: DOWNGRADE to a release before 11.2.26.0.000 (Debian / Ubuntu)

apt-cache madison hyperion-data-relationship-management sudo apt install hyperion-data-relationship-management=<VERSION_BEFORE_11.2.26.0.000> sudo apt-mark hold hyperion-data-relationship-management

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list hyperion-data-relationship-management sudo dnf downgrade hyperion-data-relationship-management-<VERSION_BEFORE_11.2.26.0.000> sudo dnf versionlock add hyperion-data-relationship-management

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-87128?

hyperion data relationship management: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-87128 being exploited?

CVE-2026-87128 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-87128 affect?

CVE-2026-87128 affects hyperion data relationship management. Severity is critical (CVSS 9.1). Vulnerability in the Oracle Hyperion Data Relationship Management product of Oracle Hyperion (component: Access and security). The supported version that is affected is 11.2.26.0.000. Easily exploitable vulnerability allows unauthenticate

How urgent is CVE-2026-87128?

Priority 46/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-70880 CRITICAL 10.0 DOWNGRADE Vulnerability in the Oracle Hyperion Data Relationship Management product of Oracle Hyperion (component: Acces
CVE-2026-70871 CRITICAL 9.8 DOWNGRADE Vulnerability in the Oracle Hyperion Data Relationship Management product of Oracle Hyperion (component: Acces
CVE-2026-70873 CRITICAL 9.8 DOWNGRADE Vulnerability in the Oracle Hyperion Data Relationship Management product of Oracle Hyperion (component: Acces
CVE-2026-70872 CRITICAL 9.1 DOWNGRADE Vulnerability in the Oracle Hyperion Data Relationship Management product of Oracle Hyperion (component: Acces
CVE-2026-70870 HIGH 8.2 DOWNGRADE Vulnerability in the Oracle Hyperion Data Relationship Management product of Oracle Hyperion (component: Web C

References

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