CVE-2026-54497Public exploitNetwork attack vector

Cross-user data exposure via memoized render context

Published Jul 17, 2026 · Updated Jul 17, 2026

Context leakage in ViewComponent 4.0.0 through 4.11.0 allows remote authenticated users to receive stale privileged render output. ViewComponent::Base.render_in memoizes helpers, controller, request, view-flow, template details, and child context instead of resetting them for each render. Exploitation requires an application to reuse one component instance across users, tenants, or threads; ordinary per-request instantiation is unaffected.

CVSS severity6.8
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Context leakage in ViewComponent 4.0.0 through 4.11.0 allows remote authenticated users to receive stale privileged render output. ViewComponent::Base.render_in memoizes helpers, controller, request, view-flow, template details, and child context instead of resetting them for each render. Exploitation requires an application to reuse one component instance across users, tenants, or threads; ordinary per-request instantiation is unaffected.

The record

CVE
CVE-2026-54497
Published
Jul 17, 2026
Updated
Jul 17, 2026
Vendor
ViewComponent
Product
ViewComponent
Classifications
CWE-488, CWE-668, CWE-362, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 4.0.0, < 4.12.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ViewComponent · ViewComponentversion=>= 4.0.0, < 4.12.0

Published CVSS scores

6.8GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-488Exposure of Data Element to Wrong Session
CWE-668Exposure of Resource to Wrong Sphere
CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo