CVE-2026-19201 PUBLISHED

Denial of Service via Unbounded Recursion in go-attestation Windows SIPA Parser

Assigner: Google
Reserved: 07.08.2026 Published: 08.09.2026 Updated: 08.09.2026

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.

Metrics

CVSS 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
CVSS Score: 6.6

Product Status

Vendor Google
Product go-attestation
Versions Default: unaffected
  • affected from 0.0.0 to 0.6.1 (incl.)

Credits

  • https://github.com/thientd finder

References

Problem Types

  • CWE-674 (Uncontrolled Recursion) CWE

Impacts

  • CAPEC-130 Excessive Allocation