CVE-2026-91355 | Vulnetix

CVE-2026-91355 PUBLISHED CVSS 8.4 HIGH

Reported by oracle · Published October 20, 2026

Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Clean Content SDK). The supported version that is affected is 8.5.8. Easily exploitable vulnerability allows unauthenticated attacker with logon to the infrastructure where Oracle Outside In Technology executes to compromise Oracle Outside In Technology. Successful attacks of this vulnerability can result in takeover of Oracle Outside In Technology. CVSS 3.1 Base Score 8.4 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Risk scores

CVSS 3.1

8.4

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

Affected products

Vendor	Product	Versions
Oracle Corporation	Oracle Outside In Technology	8.5.8
Oracle Corporation	Oracle Outside In Technology	8.5.8
oracle	outside_in_technology

Timeline

Oct 20, 2026 CVE Published
Oct 21, 2026 EPSS Score (3 in total, the first dated here)
Oct 21, 2026 Coalition ESS Score

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2026-91355
vulnetix vdb fixes CVE-2026-91355

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-91355/fixes/registry"

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References

Oracle Advisory vendor-advisory

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