---
id: CVE-2026-19201
title: >-
  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)
summary: >-
  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…
severity: medium
cvss: 6.6
cvssVector: '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'
cwe:
  - CWE-674
vendor: Google
product: go-attestation
affected:
  - go-attestation >= 0.0.0 <= 0.6.1
published: '2026-09-09'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T15:17:25.310'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-19201'
references:
  - url: 'https://github.com/google/go-attestation/pull/506'
    label: cve-coordination@google.com
  - url: 'https://github.com/google/go-attestation/releases/tag/v0.6.2'
    label: cve-coordination@google.com
  - url: >-
      https://github.com/google/go-attestation/security/advisories/GHSA-hcm6-rjfh-f25p
    label: cve-coordination@google.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-10T14:50:10.321856Z'
cvssSource: cna
epss: 0.00278
epssPercentile: 0.20458
ingestedAt: '2026-09-09T00:15:28.862Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.