CVE-2026-6911

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 87% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Missing JWT signature verification in AWS Ops Wheel allows unauthenticated attackers to forge JWT tokens and gain unintended administrative access to the application, including the ability to read, modify, and delete all application data across tenants and manage Cognito user accounts within the deployment's User Pool, via a crafted JWT sent to the API Gateway endpoint.

To remediate this issue, users should redeploy from the updated repository and ensure any forked or derivative code is patched to incorporate the new fixes.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
16.8%
KEV
Not listed

Published

April 24, 2026

Last Modified

April 24, 2026

Advisory Details (3)

Auto-updated May 10, 2026
Patch available. Sources: github.
github Patch Available

Authentication Bypass via Missing JWT Signature Verification in AWS Ops Wheel · Advisory · aws/aws-ops-wheel · GitHub

https://github.com/aws/aws-ops-wheel/security/advisories/GHSA-v5vr-8w3c-37x2
generic

fix(auth): Add RS256 signature verification to JWT token validation by amalleramzn · Pull Request #164 · aws/aws-ops-wheel · GitHub

https://github.com/aws/aws-ops-wheel/pull/164
generic

Issue with AWS Ops Wheel (CVE-2026-6911 and CVE-2026-6912

https://aws.amazon.com/security/security-bulletins/2026-018-aws/

Vendor Advisories for CVE-2026-6911(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 69× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 133 total refreshes for this CVE.

  1. 2026-07-06 16:27 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2026-6911?
CVE-2026-6911 is a critical vulnerability published on April 24, 2026. Missing JWT signature verification in AWS Ops Wheel allows unauthenticated attackers to forge JWT tokens and gain unintended administrative access to the application, including the ability to read, modify, and delete all application data across tenants and manage Cognito user accounts within the…
When was CVE-2026-6911 disclosed?
CVE-2026-6911 was first published in the National Vulnerability Database on April 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-6911 actively exploited?
CVE-2026-6911 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-6911?
CVE-2026-6911 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-6911?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6911, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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