# CVE-2026-106806: CVE-2026-106806

Status: published. Published: 2026-11-02. Updated: 2026-11-02.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- n/a / n/a: Version not specified (affected). Source: CNA: mitre

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: Not reported

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/open5gs/open5gs/issues/4788 (CNA: mitre)

- https://github.com/open5gs/open5gs/commit/76f15375ead1b2db09193458e56640da0a86c255 (CNA: mitre)

- https://gist.github.com/hackeryounow/c923fad9de83011004bd7d078b817dc0 (CNA: mitre)

## Provenance

- CNA: mitre: https://www.cve.org/CVERecord?id=CVE-2026-106806; retrieved 2026-11-02; source updated 2026-11-02

Revision: bda161c3961778d5ba6593efc04e3f71e567608e6d43862015de750623061479

Canonical: https://y2.dev/cve/CVE-2026-106806

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