CVE-2026-19201 json
Denial of Service via Unbounded Recursion in go-attestation Windows SIPA Parser
published 2026-09-08 2 mo ago modified 2026-09-24 45 d ago also EUVD-2026-74300
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
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 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.
Patch / fix
- golang-github-google-go-attestation Debian 14 0.6.4-1
debian advisories DEBIAN-CVE-2026-19201
- github.com/google/go-attestation#506 pull request
- github.com/google/go-attestation/releases/tag/v0.6.2 release
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 59 d ago
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.6 | 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 |
| CNA | 4.0 | 6.6 | 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Google go-attestation
Classification
- Weakness
-
- CWE-674 Uncontrolled Recursion
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
Sources
- CVE List CVE-2026-19201
- NVD CVE-2026-19201
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