---
title: "CVE-2026-19201\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2026-19201?format=md
keywords: index, follow
---

# CVE-2026-19201

Publication date 14 September 2026

Last updated 14 September 2026

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

Toggle side navigation

## Description

An uncontrolled recursion vulnerability in the Windows SIPA event log
parser of Google go-attestation versions up to and including 0.6.1 allows
an attacker to cause a denial of service (DoS). The
(\*WinEvents).readELAMAggregation function recurses for every nested
elamAggregation sub-event without enforcing a maximum recursion depth
limit, while the size guard is bypassed on recursive execution paths. By
submitting a crafted Windows event log containing deeply nested
elamAggregation headers, an attacker can exhaust the goroutine call stack,
triggering an unrecoverable fatal runtime error (stack overflow) that
immediately crashes the verifier application.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| golang-github-google-go-attestation | 26.04 LTS resolute | Needs evaluation |
| 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v4.0

**Base score**

6.6 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Attack requirements | None |
  | Privileges required | None |
  | User interaction | None |
  | Vulnerable system - Confidentiality impact | None |
  | Vulnerable system - Integrity impact | None |
  | Vulnerable system - Availability impact | High |
  | Subsequent system - Confidentiality impact | None |
  | Subsequent system - Integrity impact | None |
  | Subsequent system - Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 6.6 · Medium |
  | Base + Threat score | - |
  | Base + Environmental score | - |
  | Base + Threat + Environmental score | - |

**Vector:** CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-19201)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-19201)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-19201)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-19201)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-19201>
* <https://github.com/google/go-attestation/security/advisories/GHSA-hcm6-rjfh-f25p>
* <https://github.com/google/go-attestation/pull/506>
* <https://github.com/google/go-attestation/releases/tag/v0.6.2>