Critical · CVSS 9.3CVE-2026-101157

Security Advisory 0192CVE-2026-101157

Answer in brief

CVE-2026-101157 records a Critical severity (CVSS 9.3) vulnerability in Security Advisory 0192. The current sources do not mark it as known exploited. The current feed maps Arista Networks/CloudVision CUE (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 6, 2026Updated Oct 6, 2026Source checked Oct 8, 2026First seen by HOL Oct 6, 2026Material review Oct 6, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 9.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Arista Networks/CloudVision CUE (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Arista Networks/CloudVision CUEgeneric	>=2021.2.0 <=2026.2.0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Arista Networks/CloudVision CUE.
Review the reported fix. Source-reported solution: CVE-2026-101157 has been fixed in the following releases: - 2026.2.1 and later releases

Evidence timeline and material changes

Published upstream
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 6, 2026

Sources and claim methodology

Source referencearista.com

Upstream source description

A stored cross-site scripting (XSS) vulnerability may allow an unauthenticated attacker with adjacent-network access to inject malicious content that executes when an authenticated user views affected content. Successful exploitation may allow the attacker to compromise the victim's authenticated browser session, access sensitive data, modify system state, or disrupt affected services.

Quoted source text, attributed separately from HOL analysis.