CVE-2026-31860

CVE-2026-31860 affects Unhead prior to version 2.1.11, where the useHeadSafe() composable can be bypassed to inject arbitrary HTML attributes (including event handlers) into SSR-rendered tags via acceptDataAttrs. The vulnerability arises from allowing any key starting with data- (and even spaces...

CVE-2026-31860 Unhead has a XSS bypass in `useHeadSafe` via attribute name injection and case-sensitive protocol check

Unhead is a document head and template manager. Prior to 2.1.11, useHeadSafe can be bypassed to inject arbitrary HTML attributes, including event handlers, into SSR-rendered tags. This is the composable that Nuxt docs recommend for safely handling user-generated content. The acceptDataAttrs...

Unhead has XSS bypass in `useHeadSafe` via attribute name injection and case-sensitive protocol check

Summary useHeadSafe can be bypassed to inject arbitrary HTML attributes, including event handlers, into SSR-rendered tags. This is the composable that Nuxt docs recommend for safely handling user-generated content. Details XSS via data- attribute name injection The acceptDataAttrs function safe.t...

Cross-site Scripting (XSS)

Overview org.webjars.npm:unhead is a Full-stack manager built for any framework. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the acceptDataAttrs function, which allows attribute names containing spaces or illegal characters to be injected into SSR-rendered HTM...

GHSA-G5XX-PWRP-G3FV Unhead has XSS bypass in `useHeadSafe` via attribute name injection and case-sensitive protocol check

Summary useHeadSafe can be bypassed to inject arbitrary HTML attributes, including event handlers, into SSR-rendered tags. This is the composable that Nuxt docs recommend for safely handling user-generated content. Details XSS via data- attribute name injection The acceptDataAttrs function safe.t...

PT-2026-25020

Unhead is a document head and template manager. Prior to 2.1.11, useHeadSafe can be bypassed to inject arbitrary HTML attributes, including event handlers, into SSR-rendered tags. This is the composable that Nuxt docs recommend for safely handling user-generated content. The acceptDataAttrs...

CVE-2026-29086

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.12.4, the setCookie utility did not validate semicolons ;, carriage returns \r, or newline characters \n in the domain and path options when constructing the Set-Cookie header. Because cookie...

CVE-2026-29086

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.12.4, the setCookie utility did not validate semicolons ;, carriage returns \r, or newline characters \n in the domain and path options when constructing the Set-Cookie header. Because cookie...

CVE-2026-29086 Hono: Cookie Attribute Injection via Unsanitized domain and path in setCookie()

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.12.4, the setCookie utility did not validate semicolons ;, carriage returns \r, or newline characters \n in the domain and path options when constructing the Set-Cookie header. Because cookie...

CVE-2026-29086

In IBM advisories, CVE-2026-29086 affects the Hono web framework used by IBM App Connect Enterprise containers. Prior to 4.12.4, setCookie() did not validate semicolons, carriage returns, or newlines in domain and path when constructing Set-Cookie, enabling potential cookie-attribute injection. T...

CVE-2026-29086 Hono: Cookie Attribute Injection via Unsanitized domain and path in setCookie()

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.12.4, the setCookie utility did not validate semicolons ;, carriage returns \r, or newline characters \n in the domain and path options when constructing the Set-Cookie header. Because cookie...

GHSA-5PQ2-9X2X-5P6W Hono Vulnerable to Cookie Attribute Injection via Unsanitized domain and path in setCookie()

Summary The setCookie utility did not validate semicolons ;, carriage returns \r, or newline characters \n in the domain and path options when constructing the Set-Cookie header. Because cookie attributes are delimited by semicolons, this could allow injection of additional cookie attributes if...

EUVD-2026-9508

Hono Vulnerable to Cookie Attribute Injection via Unsanitized domain and path in setCookie...

CVE-2026-0540

DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in commit 2726c74, contain a cross-site scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting five missing rawtext elements noscript, xmp, noembed, noframes, iframe in the SAFEFORXML regex. Attacke...

NLTK Downloader: Arbitrary File Write / Remote Code Execution via XML Attribute Injection in Package Index

Summary Field| Value ---|--- Component| nltk.downloader.Package Affected Version| NLTK element in the remote XML index contains a filename="..." attribute, it flows into kw and overwrites the safe value. The overridden filename is used directly at line 679 as the filesystem write destination:...

beautiful-mermaid contains an SVG attribute injection issue that can lead to cross-site scripting (XSS)

beautiful-mermaid versions prior to 0.1.3 contain an SVG attribute injection issue that can lead to cross-site scripting XSS when rendering attacker-controlled Mermaid diagrams. User-controlled values from Mermaid style and classDef directives are interpolated into SVG attribute values without...

CVE-2026-26226 beautiful-mermaid < 0.1.3 SVG Attribute Injection

beautiful-mermaid versions prior to 0.1.3 contain an SVG attribute injection issue that can lead to cross-site scripting XSS when rendering attacker-controlled Mermaid diagrams. User-controlled values from Mermaid style and classDef directives are interpolated into SVG attribute values without...

CVE-2026-26226

The CVE-2026-26226 issue affects beautiful-mermaid versions prior to 0.1.3, where user-controlled values from Mermaid style and classDef directives are interpolated into SVG attribute values without proper escaping. This enables SVG attribute injection that can lead to cross-site scripting (XSS) ...

CVE-2026-26226 beautiful-mermaid < 0.1.3 SVG Attribute Injection

beautiful-mermaid versions prior to 0.1.3 contain an SVG attribute injection issue that can lead to cross-site scripting XSS when rendering attacker-controlled Mermaid diagrams. User-controlled values from Mermaid style and classDef directives are interpolated into SVG attribute values without...

CVE-2026-26226 beautiful-mermaid < 0.1.3 SVG Attribute Injection

beautiful-mermaid versions prior to 0.1.3 contain an SVG attribute injection issue that can lead to cross-site scripting XSS when rendering attacker-controlled Mermaid diagrams. User-controlled values from Mermaid style and classDef directives are interpolated into SVG attribute values without...