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  4. CVE 2026 92359 ag ui protocol ag ui corsmiddleware utilspy
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Back to active CVEs
Low · CVSS 2.3CVE-2026-92359

ag-ui-protocol ag-ui CORSMiddleware utils.py create_strands_app cross-domain policyCVE-2026-92359

Answer in brief

CVE-2026-92359 records a Low severity (CVSS 2.3) vulnerability in ag-ui-protocol ag-ui CORSMiddleware utils.py create_strands_app cross-domain policy. The current sources do not mark it as known exploited. The current feed maps ag-ui-protocol/ag-ui (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 Sep 16, 2026Updated Sep 23, 2026Source checked Oct 31, 2026First seen by HOL Sep 16, 2026Material review Sep 23, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-942, CWE-346
Source
CVE List V5
Source checked
Oct 31, 2026
References
9 linked sources
Open source record

Key facts

Risk
Low · CVSS 2.3
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 2.3. 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 ag-ui-protocol/ag-ui (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
ag-ui-protocol/ag-uigeneric0.3.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for ag-ui-protocol/ag-ui.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 16, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 23, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 16, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
Upstream source description

A security flaw has been discovered in ag-ui-protocol ag-ui 0.3.0. The affected element is the function create_strands_app of the file integrations/aws-strands/python/src/ag_ui_strands/utils.py of the component CORSMiddleware. The manipulation results in permissive cross-domain policy with untrusted domains. The attack may be launched remotely. The attack requires a high level of complexity. The exploitability is described as difficult. Upgrading to version [email protected] is sufficient to fix this issue. The patch is identified as 9b143b9668fa52c2054ede9d34a45ac4b4401089. It is suggested to upgrade the affected component.

Quoted source text, attributed separately from HOL analysis.