VDB
CVE-2026-33168
CVE-2026-33168
PUBLISHED
CVSS 2.299999952316284 LOW
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.
EPSS 0.03% · 7.9th percentile
Risk Scores
CVSS 4.0
2.299999952316284
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS Score
0.03%
7.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| RubyGems | actionview | 8.1.0.beta1, 8.0.0.beta1, 0 |
| rails | actionview | >= 8.1.0.beta1, < 8.1.2.1, < 7.2.3.1, * |
| rails | activestorage | >= 8.0.0.beta1, < 8.0.4.1, < 7.2.3.1, * |
Timeline
- Mar 23, 2026 CVE Published
- Mar 24, 2026 EPSS Score
- Mar 24, 2026 PoC Published
- Mar 24, 2026 Security Advisory
- Mar 25, 2026 EPSS Score
- Mar 25, 2026 Coalition ESS Score
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
References
- https://discuss.rubyonrails.org/t/cve-2026-33168-possible-xss-vulnerability-in-action-view-tag-helpers/90912 advisory
- https://discuss.rubyonrails.org/t/cve-2026-33169-possible-redos-vulnerability-in-number-to-delimited-in-active-support/90911 advisory
- https://discuss.rubyonrails.org/t/cve-2026-33170-possible-xss-vulnerability-in-safebuffer-in-active-support/90910 advisory
- https://discuss.rubyonrails.org/t/cve-2026-33167-possible-xss-vulnerability-in-action-pack-debug-exceptions/90913 advisory
- https://discuss.rubyonrails.org/t/cve-2026-33658-possible-dos-vulnerability-in-active-storage-proxy-mode-via-multi-range-requests/90906 advisory
- https://discuss.rubyonrails.org/t/cve-2026-33174-possible-dos-vulnerability-in-active-storage-proxy-mode-via-range-requests/90908 advisory
- https://discuss.rubyonrails.org/t/cve-2026-33202-possible-glob-injection-in-active-storage-diskservice/90903 advisory
- https://discuss.rubyonrails.org/t/cve-2026-33195-possible-path-traversal-in-active-storage-diskservice/90904 advisory
- https://discuss.rubyonrails.org/t/cve-2026-33173-insufficient-filtering-of-metadata-in-active-storage-direct-uploads/90909 advisory
- https://discuss.rubyonrails.org/t/cve-2026-33176-possible-dos-vulnerability-in-active-support-number-helpers/90907 advisory
- https://github.com/rails/rails/security/advisories/GHSA-73f9-jhhh-hr5m url
- https://github.com/rails/rails/commit/8c9676b803820110548cdb7523800db43bc6874c url
- https://github.com/rails/rails/commit/955284d26e469a9c026a4eee5b21f0414ab0bccf url
- https://github.com/rails/rails/commit/fa19073546360856e9f4dab221fc2c5d73a45e82 url
- https://github.com/rails/rails/releases/tag/v7.2.3.1 url
- https://github.com/rails/rails/releases/tag/v8.0.4.1 url
- https://github.com/rails/rails/releases/tag/v8.1.2.1 url
- https://github.com/rails/rails/security/advisories/GHSA-v55j-83pf-r9cq url
- https://github.com/rails/rails/commit/0b6f8002b52b9c606fd6be9e7915d9f944cf539c technical
- https://github.com/rails/rails/commit/63f5ad83edaa0b976f82d46988d745426aa4a42d url
…and 3 more