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Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-f283-ghqc-fg79.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...

GHSA-32RQ-JHR7-M3HH Duplicate Advisory: Guzzle: Proxy-Authorization headers can be sent to origin servers

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-94pj-82f3-465w. This link is maintained to preserve external references. Original Description guzzlehttp/guzzle versions before 7.14.2 fail to properly isolate Proxy-Authorization headers from origin servers in...

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-2026-67355

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...

CVE-2026-67339

guzzlehttp/guzzle versions before 7.14.2 fail to properly isolate Proxy-Authorization headers from origin servers in cURL handlers. Attackers can capture proxy credentials through origin server access logs when requests are redirected, bypassed, or sent through SOCKS proxies that Guzzle...

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...

UBUNTU-CVE-2026-67339

guzzlehttp/guzzle versions before 7.14.2 fail to properly isolate Proxy-Authorization headers from origin servers in cURL handlers. Attackers can capture proxy credentials through origin server access logs when requests are redirected, bypassed, or sent through SOCKS proxies that Guzzle...

UBUNTU-CVE-2026-67354

guzzlehttp/guzzle versions before 7.15.1 contain an information disclosure vulnerability in RedirectMiddleware. When the optional allowredirects.referer setting is enabled, the middleware copies the URI fragment the portion after '' from the referring request into the generated Referer header whe...

UBUNTU-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...

CVE-2026-67354

guzzlehttp/guzzle versions before 7.15.1 contain an information disclosure vulnerability in RedirectMiddleware. When the optional allowredirects.referer setting is enabled, the middleware copies the URI fragment the portion after '' from the referring request into the generated Referer header whe...

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...

CVE-2026-67354

guzzlehttp/guzzle versions before 7.15.1 contain an information disclosure vulnerability in RedirectMiddleware. When the optional allowredirects.referer setting is enabled, the middleware copies the URI fragment the portion after '' from the referring request into the generated Referer header whe...

CVE-2026-67354 guzzlehttp/guzzle before 7.15.1 URI Fragment Disclosure via Referer

guzzlehttp/guzzle versions before 7.15.1 contain an information disclosure vulnerability in RedirectMiddleware. When the optional allowredirects.referer setting is enabled, the middleware copies the URI fragment the portion after '' from the referring request into the generated Referer header whe...

EUVD-2026-51825

guzzlehttp/guzzle versions before 7.15.1 contain an information disclosure vulnerability in RedirectMiddleware. When the optional allowredirects.referer setting is enabled, the middleware copies the URI fragment the portion after '' from the referring request into the generated Referer header whe...

CVE-2026-67354 guzzlehttp/guzzle before 7.15.1 URI Fragment Disclosure via Referer

guzzlehttp/guzzle versions before 7.15.1 contain an information disclosure vulnerability in RedirectMiddleware. When the optional allowredirects.referer setting is enabled, the middleware copies the URI fragment the portion after '' from the referring request into the generated Referer header whe...

CVE-2026-67354

The CVE-2026-67354 entry applies to guzzlehttp/guzzle prior to 7.15.1, where RedirectMiddleware can disclose the URI fragment via the Referer header when allow_redirects.referer is enabled during same-scheme redirects. An attacker controlling the redirect destination may obtain sensitive data (e....

CVE-2026-67354 guzzlehttp/guzzle before 7.15.1 URI Fragment Disclosure via Referer

guzzlehttp/guzzle versions before 7.15.1 contain an information disclosure vulnerability in RedirectMiddleware. When the optional allowredirects.referer setting is enabled, the middleware copies the URI fragment the portion after '' from the referring request into the generated Referer header whe...

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-2026-51854

guzzlehttp/guzzle versions before 7.14.2 fail to properly isolate Proxy-Authorization headers from origin servers in cURL handlers. Attackers can capture proxy credentials through origin server access logs when requests are redirected, bypassed, or sent through SOCKS proxies that Guzzle...

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 ...