Vulnerability in Google Go-Attestation
CVE-2026-19201
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (18.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000
Affected products
Weakness classification (CWE)
References
- github.com/google/go-attestation/pull/506 (Patch, Vendor Advisory)
- github.com/google/go-attestation/releases/tag/v0.6.2 (Patch, Release Notes)
- github.com/google/go-attestation/security/advisories/GHSA-hcm6-rjfh-f25p (Broken Link)
Frequently asked questions
- What is CVE-2026-19201?
- CVE-2026-19201 is a high-severity vulnerability in Google Go-Attestation, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2026-09-09.
- How severe is CVE-2026-19201?
- High severity. CVSS v3 base score is 7.5 out of 10.