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.
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Fixes

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Workaround

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History

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

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-11-02T17:44:51.954Z

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

Link: CVE-2026-106806

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

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

Modified: 2026-11-02T19:35:33.347

Link: CVE-2026-106806

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-02T19:30:17Z

Weaknesses