CVE-2026-106806
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductOpen5GS
PublishedNov 2, 2026
First seenNov 4, 2026
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Open5GS Open5GS | 2.8.0 | — |
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