Action View provides conventions and helpers for building web pages with the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when a blank string is used as an HTML attribute name in Action View tag helpers, the attribute escaping is bypassed, producing malformed HTML. A carefully crafted attribute value could then be misinterpreted by the browser as a separate attribute name, possibly leading to XSS. Applications that allow users to specify custom HTML attributes are affected. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.
CVE-2026-33168
This low-severity CVE scores 2.3 under the CNA's CVSS v4.0 (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 59% 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).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 2.3
- EG Score
- 2.3(medium)
- EG Risk
- 11(Track)EG Risk 11/100SSVC: 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 computedSeverity23% × 45%Exploitation1% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 40.8%
- KEV
- Not listed
Published
March 23, 2026
Last Modified
April 16, 2026
References (7)
- security-advisories@githubhttps://github.com/rails/rails/commit/0b6f8002b52b9c606fd6be9e7915d9f944cf539c
- security-advisories@githubhttps://github.com/rails/rails/commit/63f5ad83edaa0b976f82d46988d745426aa4a42d
- security-advisories@githubhttps://github.com/rails/rails/commit/c79a07df1e88738df8f68cb0ee759ad6128ca924
- security-advisories@githubhttps://github.com/rails/rails/releases/tag/v7.2.3.1
- security-advisories@githubhttps://github.com/rails/rails/releases/tag/v8.0.4.1
- security-advisories@githubhttps://github.com/rails/rails/releases/tag/v8.1.2.1
- security-advisories@githubhttps://github.com/rails/rails/security/advisories/GHSA-v55j-83pf-r9cq
Affected Packages
(1 across 1 ecosystem)
RubyGems(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| actionview | 4.1.0 ... 7.2.3 (286 versions) | 7.2.3.1 | — |
Data Freshness Timeline
(refreshed 10× in last 7d / 43× 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 102 total refreshes for this CVE.
- 2026-07-23 03:09 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
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- 2026-06-08 15:05 UTCEG score recompute▲ 2.30
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- 2026-05-20 20:37 UTCEG score recompute
Frequently asked(5)
What is CVE-2026-33168?
When was CVE-2026-33168 disclosed?
Is CVE-2026-33168 actively exploited?
What is the CVSS score of CVE-2026-33168?
How do I remediate CVE-2026-33168?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-33168
Is Your Infrastructure Affected by CVE-2026-33168?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.