CVE-2026-54498

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 76% 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, secondary
Elevated
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.7Exploit: Elevated riskExposed: 0

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

view_component is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. From 4.0.0 until 4.12.0, ViewComponent::Base#around_render can return HTML-unsafe strings that bypass the escaping behavior applied to normal #call return values. This creates an XSS risk when downstream applications use around_render to wrap, replace, instrument, or conditionally return content that includes user-controlled data, and ViewComponent::Collection#render_in can amplify the issue by joining per-item results and marking the entire output html_safe, converting raw unsafe output into an ActiveSupport::SafeBuffer. This issue is fixed in version 4.12.0.

CVSS v3
8.7
EG Score
8.7(medium)
EG Risk
55(Track*)
EG Risk 55/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity87% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

July 15, 2026

Last Modified

July 29, 2026

Advisory Details (4)

Auto-updated Jul 17, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github Patch Available🟡 PoC Available

around_render HTML-Safety Bypass · Advisory · ViewComponent/view_component · GitHub

https://github.com/ViewComponent/view_component/security/advisories/GHSA-97jw-64cj-jc58
github_release Patch Available

4.12.0

Patch available: ViewComponent/view_component v4.12.0

https://github.com/ViewComponent/view_component/releases/tag/v4.12.0
github_commit Patch Available

commit 6796b2e89d0b (ViewComponent/view_component)

Patch available: ViewComponent/view_component v4.12.0 (contains commit 6796b2e89d0b)

https://github.com/ViewComponent/view_component/commit/6796b2e89d0bd7b9d7d763a86275e5334731dd61
github_commit Patch Available

commit 48e5fd2d6023 (ViewComponent/view_component)

Patch available: ViewComponent/view_component v4.12.0 (contains commit 48e5fd2d6023)

https://github.com/ViewComponent/view_component/commit/48e5fd2d602344c7d33019fbc5c8b087e315bb78

Vendor Advisories for CVE-2026-54498(1)

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

Affected Packages

(1 across 1 ecosystem)
RubyGems(1)
PackageVulnerable rangeFixed inDependents
view_component4.0.0 ... 4.9.0 (15 versions)4.12.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 55× 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.

  1. 2026-08-30 03:43 UTCEG score recompute
  2. 2026-08-30 01:22 UTCEPSS rescore
  3. 2026-08-28 21:41 UTCEPSS rescore
  4. 2026-08-28 01:51 UTCEG score recompute
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  1. 2026-08-16 07:47 UTCEG score recompute
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  6. 2026-08-13 22:00 UTCEPSS rescore
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  8. 2026-08-12 13:51 UTCEPSS rescore
  9. 2026-08-11 22:47 UTCEG score recompute
  10. 2026-08-11 11:03 UTCEG score recompute
  11. 2026-08-11 00:00 UTCEPSS rescore
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  15. 2026-08-08 16:37 UTCEPSS rescore
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  18. 2026-08-06 13:47 UTCEPSS rescore
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  20. 2026-08-05 19:17 UTCEPSS rescore
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  22. 2026-08-04 15:10 UTCEPSS rescore
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  24. 2026-08-04 10:39 UTCEPSS rescore
  25. 2026-08-03 13:28 UTCEG score recompute
  26. 2026-08-03 10:36 UTCEPSS rescore
  27. 2026-08-02 02:28 UTCEG score recompute
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  29. 2026-08-01 14:48 UTCEG score recompute
  30. 2026-08-01 04:16 UTCEPSS rescore
  31. 2026-07-31 03:41 UTCEG score recompute
  32. 2026-07-30 16:28 UTCEPSS rescore
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  34. 2026-07-30 03:29 UTCEG score recompute
  35. 2026-07-30 01:30 UTCEPSS rescore
  36. 2026-07-29 02:44 UTCEG score recompute
  37. 2026-07-28 15:37 UTCEPSS rescore
  38. 2026-07-27 15:39 UTCEG score recompute
  39. 2026-07-26 16:18 UTCEG score recompute
  40. 2026-07-26 14:54 UTCEPSS rescore
  41. 2026-07-26 04:38 UTCEG score recompute
  42. 2026-07-25 14:18 UTCEPSS rescore
  43. 2026-07-24 14:18 UTCEPSS rescore
  44. 2026-07-23 14:18 UTCEPSS rescore
  45. 2026-07-23 03:19 UTCEG score recompute
  46. 2026-07-22 14:08 UTCEPSS rescore
  47. 2026-07-21 15:25 UTCEPSS rescore
  48. 2026-07-20 17:08 UTCEPSS rescore
  49. 2026-07-19 14:31 UTCEPSS rescore
  50. 2026-07-19 14:31 UTCEPSS rescore
  51. 2026-07-19 02:36 UTCEG score recompute
  52. 2026-07-19 02:29 UTCEPSS rescore
  53. 2026-07-15 22:54 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-54498?
CVE-2026-54498 is a high vulnerability published on July 15, 2026. viewcomponent is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. From 4.0.0 until 4.12.0, ViewComponent::Base#aroundrender can return HTML-unsafe strings that bypass the escaping behavior applied to normal #call return values. This creates an XSS risk…
When was CVE-2026-54498 disclosed?
CVE-2026-54498 was first published in the National Vulnerability Database on July 15, 2026, with the most recent update on July 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54498 actively exploited?
CVE-2026-54498 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 76.5% of all scored CVEs.
What is the CVSS score of CVE-2026-54498?
CVE-2026-54498 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-54498?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54498, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-54498

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