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TI-2026-57515 Aliases CVE-2026-83276GHSA-hh8r-222q-x7qh

Uncontrolled resource consumption in Oracle Helidon

Priority LOW 39CWE-400Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-400.

Summary

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-http2). Supported versions that are affected are 4.0.0-4.5.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP/2 to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Helidon. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0047 40th 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
Partial

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 – 4.5.4—No fix listedCNA
  • Helidon VendorOracle Affected 4.0.0 – 4.5.4 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:oracle:helidon:*:*:*:*:*:*:*:*4.0.0 – 4.5.4VulnerableOracle
  • cpe:2.3:a:oracle:helidon:*:*:*:*:*:*:*:* Versions 4.0.0 – 4.5.4 Vulnerable ·Oracle

Remediation

No fixed version listed by the sources yet.

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/cspusep2026.html

    13 records Highest priority Priority LOW 13 LOW

    Other records, highest priority first

    • TI-2026-59648 Uncontrolled resource consumption in Oracle HelidonPriority LOW 39
    • TI-2026-57569 Uncontrolled resource consumption in Oracle HelidonPriority LOW 39
    • TI-2026-57520 Uncontrolled resource consumption in Oracle HelidonPriority LOW 39
    Show all 13 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-83276
  2. 2026-10-03 Alias added: GHSA-hh8r-222q-x7qh

References

Advisory 1

  • TI-2026-51942 Improper access control in Oracle Helidon CVSS 3.1CRITICAL 9.9
  • TI-2026-51933 Improper access control in Oracle Helidon CVSS 3.1CRITICAL 9.8
  • TI-2026-51932 Improper access control in Oracle Helidon CVSS 3.1CRITICAL 9.4
  • TI-2026-51924 Improper access control in Oracle Helidon CVSS 3.1CRITICAL 9.8
  • TI-2026-51917 Improper access control in Oracle Helidon CVSS 3.1CRITICAL 9.8
  • TI-2026-49858 Improper access control in Oracle Helidon CVSS 3.1CRITICAL 9.4
See all 114 →

Sources

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