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TI-2026-77897 Aliases CVE-2026-101590GHSA-wj57-g687-g8r3

Missing authentication in Oracle Helidon lets attackers modify data

Priority MEDIUM 48CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

Oracle Helidon from 4.0.0 through 4.5.5 is affected in its helidon-microprofile-security component. Authentication is missing for a critical function (CWE-306), so requests skip the required identity checks. An unauthenticated remote attacker over HTTP can create, delete or modify critical data and access all data that Helidon handles.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-microprofile-security). Supported versions that are affected are 4.0.0-4.5.5. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Helidon accessible data as well as unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0042 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OracleHelidon4.0.0 – 4.5.5—No fix listedCNA
  • Helidon VendorOracle Affected 4.0.0 – 4.5.5 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:oracle:helidon:*:*:*:*:*:*:*:*——Oracle
  • cpe:2.3:a:oracle:helidon:*:*:*:*:*:*:*:* Versions — — ·Oracle

Remediation

The sources list no fixed version for Helidon.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Oracle Helidon — oracle.com/security-alerts/cpuoct2026.html

    22 records Highest priority Priority MEDIUM 1 MEDIUM, 21 LOW

    Other records, highest priority first

    • TI-2026-77879 Uncontrolled resource consumption in Oracle Helidon HTTP/2 clientPriority LOW 39
    • TI-2026-77892 Information exposure in Oracle Helidon CORS componentPriority LOW 37
    • TI-2026-77886 Information exposure in Oracle Helidon gRPC serverPriority LOW 37
    Show all 22 records → Advisory →

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-101590
  2. 2026-10-21 Alias added: GHSA-wj57-g687-g8r3
  3. 2026-10-21 Weakness changed · CISA ADP
  4. 2026-10-21 CISA SSVC decision points changed
  5. 2026-10-23 CISA SSVC decision points changed

References

Advisory 1

  • TI-2026-34425 Improper privilege management in Oracle Payments KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-27421 Missing authentication in Oracle PeopleSoft Enterprise PeopleTools KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-17661 Improper access control in Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in KEVCVSS 3.1CRITICAL 10.0
  • TI-2025-38252 Improper authentication in Oracle Concurrent Processing KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-38151 Missing authentication in Oracle Identity Manager KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
See all 14200 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences