Medium

CVE-2026-91530 — Vulnerability in Oracle GoldenGate (component: Admin Client Executable). Supported…

Vulnerability in Oracle GoldenGate (component: Admin Client Executable). Supported versions that are affected are 23.4-23.26.2.0.0. Difficult to exploit vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle GoldenGate. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle GoldenGate accessible data. CVSS 3.1 Base Score 4.4 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N).

Published Oct 20, 2026 · Updated Oct 21, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: oracle

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.2% (30-day exploitation probability)+2
Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.25%

ahead of 15% of scored CVEs · Oct 23, 2026

Affects

Oracle

Goldengate

CVSS base

4.4

Medium · 2 source(s)

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Oracle Goldengate).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Oracle	Goldengate	≥ 23.4 and ≤ 23.26.2.0.0	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Network

Attack complexity

High

Privileges required

High

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
4.4	CVSS 3.1	Medium	0.7	3.6	secalert_us@oracle.com via NIST National Vulnerability Database
4.4	CVSS 3.1	Medium	—	—	oracle via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N (score shown at the top: secalert_us@oracle.com)

EPSS over time FIRST

Oct 21, 2026 → Oct 23, 2026 · 3 reading(s) · max 0.25%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).

web/proxy/WAF logsnetwork IDS/IPS

Timeline

What happened to this CVE, newest first.

2026
Source status changed · Received → Awaiting Analysis
Oct 21, 2026 · NIST National Vulnerability Database
Affected products added · oracle corporation/oracle goldengate
Oct 20, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 20, 2026
CVSS changed · 4.4
Oct 20, 2026 · NIST National Vulnerability Database
Source status changed · → Received
Oct 20, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 20, 2026 · NIST National Vulnerability Database
CVE published
Oct 20, 2026 · oracle

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 20, 2026 – Oct 20, 2026

References

1 on the record

www.oracle.com/security-alerts/cpuoct2026.html
vendor-advisory, NIST National Vulnerability Database

Elsewhere on this site

Oracle
every CVE for this vendor

Related CVEs (same products)

Medium CVE-2026-91547 Vulnerability in Oracle GoldenGate (component: Vendor Access Module). Supported versions… 4d
High CVE-2026-87351 Vulnerability in Oracle GoldenGate (component: Admin Server Executable). Supported versions that... 4d
Medium CVE-2026-101601 Vulnerability in Oracle GoldenGate (component: Vendor Access Module). Supported versions… 4d
High CVE-2026-61106 Vulnerability in Oracle GoldenGate (component: Config Service Executable). Supported versions... Jul 21, 2026
Medium CVE-2026-61084 Vulnerability in Oracle GoldenGate (component: Libraries). Supported versions that are affected... Jul 21, 2026
Medium CVE-2026-61079 Vulnerability in Oracle GoldenGate (component: Libraries). Supported versions that are affected... Jul 21, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No CWE classification.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-91530 is "Vulnerability in Oracle GoldenGate (component: Admin Client Executable). Supported…", rated Medium. It affects Goldengate (Oracle); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 4.4 describes technical severity. EPSS 0.25% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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