CVE-2026-19201: CWE-674 (Uncontrolled Recursion) in Google go-attestation
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.
CVSS v4.0
Score 6.6medium
Affected software
go-attestation
pkg:golang/github.com/google/go-attestationRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in Google go-attestation (<=0.6.1) involves uncontrolled recursion in the Windows SIPA event log parser's readELAMAggregation function. The function recurses for each nested elamAggregation sub-event without enforcing a maximum recursion depth, and the size guard is bypassed on recursive paths. An attacker can exploit this by submitting a crafted Windows event log with deeply nested elamAggregation headers, causing exhaustion of the goroutine call stack and triggering a fatal runtime error (stack overflow) that crashes the verifier application.
Potential Impact
Successful exploitation results in a denial of service (DoS) by crashing the verifier application due to stack overflow. There is no indication of privilege escalation, data disclosure, or code execution. The impact is limited to application availability.
Mitigation Recommendations
No patch or official fix is currently documented. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid processing untrusted or crafted Windows event logs containing deeply nested elamAggregation headers to mitigate risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Date Reserved
- 2026-08-07T05:05:43.275Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa09ffaacd9273b49653e8a
Added to database: 09/08/2026, 23:53:30 UTC
Last enriched: 09/16/2026, 01:50:16 UTC
Last updated: 10/22/2026, 01:15:21 UTC
Views: 83
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