CVE-2026-106806

Full vulnerability record from the local CVENow database.

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.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Deferred

Source identifier

[email protected]

Published

2026-11-02 18:18:33.970000

Last modified

2026-11-02 19:35:33.347000

View original CVE JSON

{
  "id": "CVE-2026-106806",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-02T18:18:33.970",
  "lastModified": "2026-11-02T19:35:33.347",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "version": "n/a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://gist.github.com/hackeryounow/c923fad9de83011004bd7d078b817dc0",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/open5gs/open5gs/commit/76f15375ead1b2db09193458e56640da0a86c255",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/open5gs/open5gs/issues/4788",
      "source": "[email protected]"
    }
  ]
}