aiohttp: AIOHTTP: Arbitrary code execution via untrusted input to CookieJar.load()

A flaw was found in AIOHTTP, an asynchronous HTTP client/server framework for asyncio and Python. An attacker could exploit this vulnerability by providing untrusted input to the CookieJar.load function. This could potentially lead to arbitrary code execution, allowing the attacker to run malicio...

aiohttp: AIOHTTP: Arbitrary code execution via untrusted input to CookieJar.load()

A flaw was found in AIOHTTP, an asynchronous HTTP client/server framework for asyncio and Python. An attacker could exploit this vulnerability by providing untrusted input to the CookieJar.load function. This could potentially lead to arbitrary code execution, allowing the attacker to run malicio...

Important: Red Hat Security Advisory: Satellite 6.17.10 Async Update

A new release is now available for Red Hat Satellite 6.17 for RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

RHEL 9 : Satellite 6.17.10 Async Update (Important) (RHSA-2026:50222)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:50222 advisory. Red Hat Satellite is a system management solution that allows organizations to configure and maintain their systems without the necessity t...

Duplicate Advisory: Guzzle: Unbounded response cookies risk denial of service

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-f283-ghqc-fg79. This link is maintained to preserve external references. Original Description guzzlehttp/guzzle versions before 7.15.1 contain a denial of service vulnerability in the CookieJar that accepts...

CVE-2026-67355

guzzlehttp/guzzle versions before 7.15.1 fail to preserve host-only cookie scope, storing the request host in the Domain field instead of marking cookies as host-only. Attackers controlling child hosts can receive host-only cookies intended only for parent hosts, potentially disclosing session...

UBUNTU-CVE-2026-67353

guzzlehttp/guzzle versions before 7.15.1 contain a denial of service vulnerability in the CookieJar that accepts unlimited Set-Cookie header fields with no size restrictions. Attackers can return many large cookies from a malicious server, causing Guzzle to store excessive data in memory and...

CVE-2026-67353 guzzlehttp/guzzle before 7.15.1 Unbounded Cookie Denial of Service

guzzlehttp/guzzle versions before 7.15.1 contain a denial of service vulnerability in the CookieJar that accepts unlimited Set-Cookie header fields with no size restrictions. Attackers can return many large cookies from a malicious server, causing Guzzle to store excessive data in memory and...

CVE-2026-67355

CVE-2026-67355 affects guzzlehttp/guzzle versions before 7.15.1. The issue is that host-only cookie scope is not preserved; the request host is stored in the Domain field instead of marking cookies as host-only. As a result, attackers controlling child hosts could receive host-only cookies intend...

CVE-2026-67353

guzzlehttp/guzzle versions before 7.15.1 contain a denial of service vulnerability in the CookieJar that accepts unlimited Set-Cookie header fields with no size restrictions. Attackers can return many large cookies from a malicious server, causing Guzzle to store excessive data in memory and...

Guzzle: Host-only cookie scope is not preserved

Impact In affected versions, CookieJar does not preserve whether a response cookie was set without a Domain attribute or with an empty one. A cookie without Domain is host-only and must be returned only to the exact host that set it. Under current cookie processing rules, an empty Domain value is...

Incorrectly Specified Destination in a Communication Channel

Overview Affected versions of this package are vulnerable to Incorrectly Specified Destination in a Communication Channel via improper handling of host-only cookies in the CookieJar process. An attacker can obtain sensitive information such as session identifiers or authorization tokens by...

Improperly Controlled Sequential Memory Allocation

Overview Affected versions of this package are vulnerable to Improperly Controlled Sequential Memory Allocation via the CookieJar process. An attacker can exhaust system memory and cause service disruption by sending a large number of oversized Set-Cookie headers in responses, which are then stor...

Guzzle: Unbounded response cookies risk denial of service

Impact In affected versions, Guzzle's built-in CookieJar accepts any number of Set-Cookie header fields from one response, with no limit on the size of each field. When a later request matches the stored cookies, Guzzle places every match into one generated Cookie header without limiting the numb...

Guzzle: Cookie Disclosure and Injection via IP-Address Domains

Impact CookieJar does not restrict a cookie scoped to an IP address to the exact host that set it. When a stored cookie's Domain attribute is an IPv4 literal Domain=192.168.0.1, a bracketed IPv6 literal Domain=::1, or a bare numeric value that denotes an IPv4 address Domain=1, which is 0.0.0.1,...

PT-2026-67328

Name of the Vulnerable Software and Affected Versions guzzlehttp/guzzle versions prior to 7.15.1 Description The CookieJar component fails to preserve the host-only scope of response cookies that are set without a Domain attribute or with an empty one. Instead of marking these cookies as host-onl...

SUSE SLES15 Security Update : python-aiohttp (SUSE-SU-2026:3059-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3059-1 advisory. This update for python-aiohttp fixes the following issues - CVE-2026-22815: insufficient header/trailer handling can cause a denial...

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 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...