CVE-2026-126079
- Source
- https://cve.org/CVERecord?id=CVE-2026-126079
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-126079.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-126079
- Aliases
-
- GHSA-2p2f-4rq4-gjwc
- Downstream
- Published
- 2026-11-10T21:02:30Z
- Modified
- 2026-11-11T10:47:26Z
- Severity
-
- 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- Action View: Possible XSS vulnerability in Action View text helpers
- Details
-
Action View is a framework for handling view template lookup and rendering and provides view helpers for building HTML. Prior to 8.1.4.1 and 8.0.5.2, with the HTML5 sanitizer (Rails::HTML5::Sanitizer, the default vendor on CRuby for applications using load_defaults 7.1 or later), Nokogiri before 1.19.5 serializes < and > unescaped inside attribute values. The Action View text helpers highlight and simple_format sanitize their input and then process the resulting HTML as a string: highlight splits it on tag boundaries to insert matches, and simple_format splits it into paragraphs on blank lines. An unescaped > or a blank line inside an attribute value could cause markup in that value, which the sanitizer left inert, to be emitted as live elements in the helper's html_safe output, possibly leading to XSS. Applications that use the HTML5 sanitizer and pass untrusted text to highlight, or to simple_format with html_options, are affected. This issue is fixed in versions 8.1.4.1 and 8.0.5.2.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-79" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126079.json" }- References
-
- http://github.com/rails/rails/commit/adc3a32d4abea77ed3aacf6f5fb71cfc005bef73
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126079.json
- https://github.com/rails/rails/commit/009ea68342d05d02087c04dae7faaa4e4c1def11
- https://github.com/rails/rails/releases/tag/v8.0.5.2
- https://github.com/rails/rails/releases/tag/v8.1.4.1
- https://github.com/rails/rails/security/advisories/GHSA-2p2f-4rq4-gjwc
- https://nvd.nist.gov/vuln/detail/CVE-2026-126079
Affected packages
Git / github.com/rails/rails
Affected ranges
- Type
- GIT
- Repo
- https://github.com/rails/rails
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "8.0.5.2" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "introduced": "8.1" }, { "fixed": "8.1.4.1" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "009ea68342d05d02087c04dae7faaa4e4c1def11" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v8.0.5.2", "range": [ { "fixed": "235c597b100321b6bd2d62f8df63707f42b25b2d" } ], "source": "REFERENCES_TAG" }, { "original_tag": "v8.1.4.1", "range": [ { "fixed": "3f290b759c8e2ffe7c257951b1255740751355e4" } ], "source": "REFERENCES_TAG" }, { "range": [ { "fixed": "adc3a32d4abea77ed3aacf6f5fb71cfc005bef73" } ], "source": "REFERENCES_COMMIT" } ] }