CVE-2026-106806

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    CVE-2026-106806

    Published: 2 Nov 2026Last Modified: 7 Nov 2026

    Summary:

    Details: 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: https://gist.github.com/hackeryounow/c923fad9de83011004bd7d078b817dc0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106806.json, https://nvd.nist.gov/vuln/detail/CVE-2026-106806, https://github.com/open5gs/open5gs/issues/4788, https://github.com/open5gs/open5gs/commit/76f15375ead1b2db09193458e56640da0a86c255

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -76f15375ead1b2db09193458e56640da0a86c255

    Affected versions

    v2.8.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-106806 | CVE-DB