Description
A memory exhaustion issue exists in Open5GS v2.8.0 in the HTTP/2 SBI server. Repeated header names cause previously allocated header strings to be leaked, and HPACK compression allows an unauthenticated remote attacker to trigger tens of thousands of duplicate headers with a small request. Repeated crafted requests can cause persistent heap growth, exhaust process memory, and terminate the affected Open5GS network function, resulting in denial of service.
Published: 2026-11-02
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No solution or workaround provided in the CVE record.

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Tracking

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Advisories

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History

Thu, 05 Nov 2026 19:15:00 +0000

Type Values Removed Values Added
Title HTTP/2 Header Injection Causing Heap Exhaustion and Denial of Service in Open5GS
Weaknesses CWE-401
CWE-770

Thu, 05 Nov 2026 17:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 02 Nov 2026 19:45:00 +0000

Type Values Removed Values Added
Title HTTP/2 Header Injection Causing Heap Exhaustion and Denial of Service in Open5GS
First Time appeared Open5gs
Open5gs open5gs
Weaknesses CWE-401
CWE-770
Vendors & Products Open5gs
Open5gs open5gs

Mon, 02 Nov 2026 18:00:00 +0000

Type Values Removed Values Added
Description A memory exhaustion issue exists in Open5GS v2.8.0 in the HTTP/2 SBI server. Repeated header names cause previously allocated header strings to be leaked, and HPACK compression allows an unauthenticated remote attacker to trigger tens of thousands of duplicate headers with a small request. Repeated crafted requests can cause persistent heap growth, exhaust process memory, and terminate the affected Open5GS network function, resulting in denial of service.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-11-05T16:34:18.009Z

Reserved: 2026-10-07T00:00:00.000Z

Link: CVE-2026-106806

cve-icon Vulnrichment

Updated: 2026-11-05T16:33:45.735Z

cve-icon NVD

Status : Deferred

Published: 2026-11-02T18:18:33.970

Modified: 2026-11-05T17:17:34.730

Link: CVE-2026-106806

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-05T20:45:07Z

Weaknesses
  • CWE-400

    Uncontrolled Resource Consumption