UBUNTU-CVE-2026-91991

Tornado before 6.5.8 contains an incomplete fix for cookie attribute i...

CVE-2026-91991

Tornado before 6.5.8 contains an incomplete fix for cookie attribute i...

CVE-2026-91991

A flaw was found in Tornado. An attacker can bypass security validation in the setcookie function by using capitalized or legacy keyword arguments. This allows the attacker to inject arbitrary cookie attributes, such as Domain or SameSite, and modify cookie security settings. The consequence is t...

CVE-2026-91991

Tornado before 6.5.8 contains an incomplete fix for cookie attribute injection that allows attackers to inject arbitrary cookie attributes by passing capitalized or legacy keyword arguments to setcookie. Attackers can embed semicolon-delimited data in capitalized parameters like Domain, Path, or...

CVE-2026-91991

Tornado (Python web framework) versions before 6.5.8 contain an incomplete fix for cookie attribute injection in the set_cookie function. An attacker can pass capitalized or legacy keyword arguments (e.g., Domain, Path, SameSite) to embed semicolon-delimited data, bypassing validation and modifyi...

CVE-2026-91991

Tornado before 6.5.8 contains an incomplete fix for cookie attribute injection that allows attackers to inject arbitrary cookie attributes by passing capitalized or legacy keyword arguments to setcookie. Attackers can embed semicolon-delimited data in capitalized parameters like Domain, Path, or...

CVE-2026-91991 Tornado before 6.5.8 Cookie Attribute Injection via Capitalized kwargs

Tornado before 6.5.8 contains an incomplete fix for cookie attribute injection that allows attackers to inject arbitrary cookie attributes by passing capitalized or legacy keyword arguments to setcookie. Attackers can embed semicolon-delimited data in capitalized parameters like Domain, Path, or...

Linux Distros Unpatched Vulnerability : CVE-2026-91991

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Tornado before 6.5.8 contains an incomplete fix for cookie attribute injection that allows attackers to inject arbitrary cookie attributes by passing capitalize...

GHSA-WWV5-G3V4-889X Tornado: Incomplete fix for CVE-2026-35536: cookie attribute injection re-opened via the legacy case-insensitive `**kwargs` path in `set_cookie`

Summary The CVE-2026-35536 fix added a validation loop that rejects \x00-\x20\x3b\x7f, but only for the hardcoded lowercase keys name/domain/path/samesite. The still-live deprecated kwargs path writes attacker-supplied attribute values straight into the Morsel with no validation, and because...

CVE-2026-18531

CVE-2026-18531 affects IBM Maximo Application Suite (MAS) versions 9.0, 9.1, and 9.2. The issue is due to a weak HMAC session signing secret, which could allow a remote attacker to tamper with session data. The consequence is potential session integrity loss without requiring user interaction. Ac...

Cookie Attribute Injection

undici is vulnerable to cookie attribute injection. The vulnerability is due to insufficient sanitization of cookie domain and unparsed values in setCookie, allowing attacker-controlled input to inject or override cookie attributes such as SameSite, Secure, and HttpOnly, potentially weakening...

SUSE CVE-2026-16729

undici's setCookie function does not fully sanitize cookie attributes. In undici before 6.28.0, from 7.0.0 up to before 7.29.0, and from 8.0.0 up to before 8.9.0, a domain value is not checked for semicolons and entries in the unparsed array are not sanitized, so attacker-influenced input can...

undici vulnerable to cookie attribute injection via unsanitized domain and unparsed setCookie fields

Impact The setCookie function has two attribute injection paths. validateCookieDomain does not reject semicolons validateCookiePath already does at 0x3B, so a domain value like example.com; SameSite=None lands verbatim as Domain=example.com; SameSite=None. The unparsed array's loop only checks ea...

undici: Undici: Cookie attribute injection allows bypassing security protections

A flaw was found in undici, where its setCookie function does not fully sanitize cookie attributes. A remote attacker could exploit this by providing specially crafted input to the domain or unparsed fields, leading to the injection of additional cookie attributes. This vulnerability can allow an...

undici: Undici: Cookie attribute injection allows bypassing security protections

A flaw was found in undici, where its setCookie function does not fully sanitize cookie attributes. A remote attacker could exploit this by providing specially crafted input to the domain or unparsed fields, leading to the injection of additional cookie attributes. This vulnerability can allow an...

AZL-94443 CVE-2026-16729 affecting package nodejs 24.20.0-1

undici's setCookie function does not fully sanitize cookie attributes. In undici before 6.28.0, from 7.0.0 up to before 7.29.0, and from 8.0.0 up to before 8.9.0, a domain value is not checked for semicolons and entries in the unparsed array are not sanitized, so attacker-influenced input can...

CVE-2026-49977 tarteaucitron.js: data-cookie attribute can be used to delete arbitrary cookies

tarteaucitron.js is a compliant and accessible cookie banner. Prior to 1.33.0, tarteaucitron.cookie.purge is called on any element with the purgeBtn class and does not check whether the element is a legitimate tarteaucitron button or whether the cookie corresponds to a service handled by...

tarteaucitron: data-cookie attribute can be used to delete arbitrary cookies

Summary tarteaucitron provides a list of cookies and buttons to delete them. If an attacker can write HTML with data attributes, they could create an element that silently deletes a cookie when clicked and trick a user to delete this cookie. Details tarteaucitron.cookie.purge is called on any...

NPM: tarteaucitron: data-cookie attribute can be used to delete arbitrary cookies

NPM: tarteaucitron: data-cookie attribute can be used to delete arbitrary cookies vulnerability discovered by ? in WordPress Npm tarteaucitronjs versions 1.33.0...

CVE-2026-56813 Cookie attribute injection in Plug.Conn.Cookies.encode/2

Improper Neutralization of Parameter/Argument Delimiters vulnerability in elixir-plug plug allows an attacker to inject or override HTTP cookie attributes. The Plug.Conn.Cookies.encode/2 function in lib/plug/conn/cookies.ex builds the Set-Cookie response header by interpolating the cookie value a...