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

Affected software: guzzlehttp/guzzle prior to 7.15.1. Issue: a denial-of-service vulnerability in CookieJar that accepts unlimited Set-Cookie header fields with no size restrictions, enabling an attacker to return many large cookies and cause excessive in-memory data and oversized Cookie headers ...

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...

EUVD-2026-51850

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-2026-59883

A flaw was found in Guzzle, an extensible PHP HTTP client. The CookieJar component improperly handled cookies for IP-address or bare-numeric domains, failing to restrict them to the exact host. This vulnerability could allow a remote attacker to disclose cookies across different hosts, inject...

SUSE-SU-2026:3207-1 Security update for python-aiohttp

This update for python-aiohttp fixes the following issues - CVE-2026-22815: insufficient restrictions in header/trailer handling can cause uncapped memory usage and a denial of service bsc1261320. - CVE-2026-34513: unbounded DNS cache can cause a excessive memory usage and lead to a denial of...

GHSA-F283-GHQC-FG79 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...

Linux Distros Unpatched Vulnerability : CVE-2026-59883

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 ho...

Origin Validation Error

Overview Affected versions of this package are vulnerable to Origin Validation Error via the CookieJar process. An attacker can access or manipulate cookies belonging to other hosts by exploiting improper domain matching for IP-address or bare-numeric domains. Remediation Upgrade guzzlehttp/guzzl...

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...

UBUNTU-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

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...

PYSEC-2026-2067 yt-dlp File Downloader cookie leak

Impact During file downloads, yt-dlp or the external downloaders that yt-dlp employs may leak cookies on HTTP redirects to a different host, or leak them when the host for download fragments differs from their parent manifest's host. This vulnerable behavior is present in all versions of...

yt-dlp File Downloader cookie leak

ImpactDuring file downloads, yt-dlp or the external downloaders that yt-dlp employs may leak cookies on HTTP redirects to a different host, or leak them when the host for download fragments differs from their parent manifest's host.This vulnerable behavior is present in all versions of youtube-dl...

CVE-2026-54279

A flaw was found in aiohttp before 3.14.1. Host-only cookies saved with CookieJar.save and later restored with CookieJar.load lose their host-only flag, so cookies intended for a single host may be sent to subdomains after persistence...

CVE-2026-54279

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, host-only cookies that are saved with CookieJar.save and then restored later with CookieJar.load lose their host-only status. This vulnerability is fixed in 3.14.1...

CVE-2026-54279 AIOHTTP: Host-Only Cookies Become Domain Cookies After CookieJar Persistence

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, host-only cookies that are saved with CookieJar.save and then restored later with CookieJar.load lose their host-only status. This vulnerability is fixed in 3.14.1...

CVE-2026-54279

CVE-2026-54279 affects the aiohttp library (Python asyncio framework). Prior to version 3.14.1, host-only cookies saved with CookieJar.save() and later restored with CookieJar.load() may lose their host-only status, effectively becoming domain cookies. The issue is fixed in aiohttp 3.14.1. Affect...

GHSA-2FQR-MR3J-6WP8 aiohttp: Host-Only Cookies Become Domain Cookies After CookieJar Persistence

Summary Host-only cookies that are saved with CookieJar.save and then restored later with CookieJar.load lose their host-only status. Impact Host-only cookies that have been loaded from disk may get sent to subdomains that previously should have been disallowed. ----- Patch:...