CVE-2026-56813

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...

CVE-2026-59883

Guzzle is an extensible PHP HTTP client. Prior to 7.12.3, CookieJar did not restrict cookies scoped to IP-address or bare-numeric Domain values to the exact host that set them, because SetCookie::matchesDomain applied ordinary suffix matching to domains such as 192.168.0.1, ::1, or 1, allowing...

CVE-2026-59883

CVE-2026-59883 – Guzzle: CookieJar domain-matching flaw in the PHP HTTP client allowed cookies scoped to IP-address or bare-numeric domains (e.g., 192.168.0.1, ::1) to be accepted by non-origin hosts due to SetCookie::matchesDomain() applying ordinary suffix matching. Affects versions prior to 7....

CVE-2026-55688

A flaw was found in the AsyncHttpClient AHC library. The ThreadSafeCookieStore component did not properly verify the domain attribute of cookies, allowing a malicious host to set a cookie for an unrelated domain. This cookie would then be sent by the client in subsequent requests to the targeted...

PT-2026-56501

Name of the Vulnerable Software and Affected Versions Guzzle versions prior to 7.12.3 Description The CookieJar component fails to restrict cookies scoped to IP addresses or bare-numeric Domain values to the specific host that issued them. This occurs because the matchesDomain function applies...

Sensitive Cookie with Improper SameSite Attribute

Overview org.asynchttpclient:async-http-client is a maven plugin for the Async Http Client AHC classes. Affected versions of this package are vulnerable to Sensitive Cookie with Improper SameSite Attribute via ThreadSafeCookieStore in ThreadSafeCookieStore.add.... An attacker can plant a cookie f...

CVE-2026-55767

Guzzle is an extensible PHP HTTP client. Prior to 7.12.1, CookieJar incorrectly accepts cookies with a dot-only Domain attribute and whitespace-padded variants. SetCookie::matchesDomain removes leading dots from the cookie domain, normalizing dot-only values to the empty string; SetCookie::valida...

CVE-2026-55767

Summary: Guzzle 7.x before 7.12.1 is vulnerable to cookie domain handling flaws in CookieJar. dot-only Domain attributes (e.g., Domain=., Domain=.., or whitespace-padded variants) are normalized to an empty domain, and the code path that rejects only an empty domain still allows it to match any h...

CVE-2026-55767 Guzzle: Dot-Only Cookie Domains Match All Hosts in guzzlehttp/guzzle

Guzzle is an extensible PHP HTTP client. Prior to 7.12.1, CookieJar incorrectly accepts cookies with a dot-only Domain attribute and whitespace-padded variants. SetCookie::matchesDomain removes leading dots from the cookie domain, normalizing dot-only values to the empty string; SetCookie::valida...

CVE-2026-55767 Guzzle: Dot-Only Cookie Domains Match All Hosts in guzzlehttp/guzzle

Guzzle is an extensible PHP HTTP client. Prior to 7.12.1, CookieJar incorrectly accepts cookies with a dot-only Domain attribute and whitespace-padded variants. SetCookie::matchesDomain removes leading dots from the cookie domain, normalizing dot-only values to the empty string; SetCookie::valida...

GHSA-CWXW-98QJ-8QJX guzzlehttp/guzzle: Dot-Only Cookie Domains Match All Hosts

Impact CookieJar incorrectly accepts cookies with a dot-only Domain attribute, such as Domain=., Domain=.., Domain=..., and whitespace-padded variants such as Domain= . . In affected versions, SetCookie::matchesDomain removes leading dots from the cookie domain, normalizing dot-only values to the...

Dot-only cookie domains match all hosts

Impact CookieJar incorrectly accepts cookies with a dot-only Domain attribute, such as Domain=., Domain=.., Domain=..., and whitespace-padded variants such as Domain= . . In affected versions, SetCookie::matchesDomain removes leading dots from the cookie domain, normalizing dot-only values to the...

CVE-2026-46625

CVE-2026-46625 concerns the JavaScript Cookie library (js-cookie) prior to 3.0.7. A per-instance prototype hijack occurs in the internal assign() when merging properties from a source object produced by JSON.parse that may include an own enumerable proto key. This polluted prototype leads to atta...

tornado: Tornado: Cookie attribute injection due to improper handling of cookie arguments

A flaw was found in Tornado. A remote attacker could exploit this vulnerability by injecting specially crafted characters into the domain, path, and samesite arguments when setting cookies. This could lead to cookie attribute injection, potentially allowing for information disclosure or...

CVE-2026-47069 CRLF injection in cookie domain/path options in hackney

Improper Neutralization of CRLF Sequences 'CRLF Injection' vulnerability in benoitc hackney allows HTTP Response Splitting. The hackneycookie:setcookie/3 function in src/hackneycookie.erl validates the Name and Value arguments against CRLF and control characters, but concatenates the domain and...

EEF-CVE-2026-47069 CRLF injection in cookie domain/path options in hackney

Summary Improper Neutralization of CRLF Sequences 'CRLF Injection' vulnerability in benoitc hackney allows HTTP Response Splitting. The hackney\cookie:setcookie/3 function in src/hackney\cookie.erl validates the Name and Value arguments against CRLF and control characters, but concatenates the...

CVE-2026-47069

CVE-2026-47069 describes a CRLF Injection in the Hackney library. The vulnerability arises from hackney_cookie:setcookie/3: Name/Value are checked for CRLF, but the domain and path options are concatenated into the output iolist without validation. An attacker controlling either option (e.g., Hos...

CVE-2026-47069 CRLF injection in cookie domain/path options in hackney

Improper Neutralization of CRLF Sequences 'CRLF Injection' vulnerability in benoitc hackney allows HTTP Response Splitting. The hackneycookie:setcookie/3 function in src/hackneycookie.erl validates the Name and Value arguments against CRLF and control characters, but concatenates the domain and...

CVE-2026-47069 CRLF injection in cookie domain/path options in hackney

Improper Neutralization of CRLF Sequences 'CRLF Injection' vulnerability in benoitc hackney allows HTTP Response Splitting. The hackneycookie:setcookie/3 function in src/hackneycookie.erl validates the Name and Value arguments against CRLF and control characters, but concatenates the domain and...

PT-2026-43066

Name of the Vulnerable Software and Affected Versions hackney versions 0.9.0 through 4.0.0 Description Improper Neutralization of CRLF Sequences, also known as CRLF Injection, allows HTTP Response Splitting. The setcookie/3 function in src/hackney cookie.erl validates Name and Value arguments...