CVE-2026-52846
CVE-2026-52846: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium4.2
Medium [CVE-2026-52846] Client-side Cross-Site Scripting (XSS) due to incomplete HTML tag stripping
CVE-2026-52846Source published Source updated
Caddy is an extensible server platform that uses TLS by default. Prior to 2.11.4, Caddy’s stripHTML template function cannot reliably remove all HTML tags from input strings. Certain malformed HTML, such as img src=x onerror=alert()>, can bypass the tag-stripping logic, potentially leaving dangerous content in the output if it is later rendered as HTML. This may allow client-side XSS in cases where untrusted strings are rendered unsafely. This vulnerability is fixed in 2.11.4. This oversight allows dangerous content to remain in the output, which, if subsequently rendered as HTML, can lead to client-side Cross-Site Scripting (XSS). A remote attacker could exploit this by providing specially crafted input, potentially executing malicious scripts in a user's browser. Caddy's stripHTML…
- Affected products in this advisory
- No product details extracted. Check the source bulletin.
- Source-reported affected versions
- < 2.11.4
- Source-reported fixed versions
- 2.11.4
- Mitigation guidance
- Users who have enabled Caddy's `templates` directive with untrusted input passed through the stripHTML function should upgrade to Caddy 2.11.4 or later, or disable the `templates` directive if not required.
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