CVE-2026-69245

Guzzle is an extensible PHP HTTP client. Prior to 7.15.2 and 8.0.1, SetCookie::matchesDomain gives every subdomain of a cookie Domain that cookie unless SetCookie::matchesDomain recognizes the Domain as an IP literal or a numeric host, and the decision comes from the domain's own text, so two...

CVE-2026-69246

Guzzle is an extensible PHP HTTP client. Prior to 7.15.2 and 8.0.1, Guzzle gives a transport the request URI as text and supplies the Host header separately. The cURL handlers set CURLOPTURL to the URI exactly as written and push that Host into CURLOPTHTTPHEADER; StreamHandler does the same throu...

EUVD-2026-52445

Guzzle is an extensible PHP HTTP client. Prior to 7.15.2 and 8.0.1, Guzzle gives a transport the request URI as text and supplies the Host header separately. The cURL handlers set CURLOPTURL to the URI exactly as written and push that Host into CURLOPTHTTPHEADER; StreamHandler does the same throu...

CVE-2026-69246 Guzzle: Noncanonical host can bypass host-based checks

Guzzle is an extensible PHP HTTP client. Prior to 7.15.2 and 8.0.1, Guzzle gives a transport the request URI as text and supplies the Host header separately. The cURL handlers set CURLOPTURL to the URI exactly as written and push that Host into CURLOPTHTTPHEADER; StreamHandler does the same throu...

CVE-2026-69246

Guzzle is an extensible PHP HTTP client. Prior to 7.15.2 and 8.0.1, Guzzle gives a transport the request URI as text and supplies the Host header separately. The cURL handlers set CURLOPTURL to the URI exactly as written and push that Host into CURLOPTHTTPHEADER; StreamHandler does the same throu...

CVE-2026-69246

CVE-2026-69246 affects the PHP HTTP client Guzzle. Before versions 7.15.2 and 8.0.1, Guzzle passes the request URI to the transport as text and separately provides a Host header. The cURL handlers set CURLOPT_URL to the URI as written and push the Host into CURLOPT_HTTPHEADER; StreamHandler does ...

Guzzle: Noncanonical cookie domain keeps subdomain scope

Impact SetCookie::matchesDomain gives every subdomain of a cookie Domain that cookie unless it recognizes the Domain as an IP literal or a numeric host, and it decides that from the domain's own text, so two spellings a transport reads as an address keep subdomain scope. On 7.15, hexadecimal and...

EUVD-2026-52443

Guzzle is an extensible PHP HTTP client. Prior to 7.15.2 and 8.0.1, SetCookie::matchesDomain gives every subdomain of a cookie Domain that cookie unless SetCookie::matchesDomain recognizes the Domain as an IP literal or a numeric host, and the decision comes from the domain's own text, so two...

CVE-2026-69245

Guzzle is an extensible PHP HTTP client. Prior to 7.15.2 and 8.0.1, SetCookie::matchesDomain gives every subdomain of a cookie Domain that cookie unless SetCookie::matchesDomain recognizes the Domain as an IP literal or a numeric host, and the decision comes from the domain's own text, so two...

CVE-2026-69245

Guzzle (PHP HTTP client) prior to versions 7.15.2 and 8.0.1 is affected by a cookie-domain handling issue in SetCookie::matchesDomain(). Noncanonical domains and certain spellings (e.g., 0x7f000001, 0177.0.0.0x1, and percent-escaped forms) can cause a cookie for a given Domain to be mis-scoped to...

Linux Distros Unpatched Vulnerability : CVE-2026-67355

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

Linux Distros Unpatched Vulnerability : CVE-2026-67353

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

Linux Distros Unpatched Vulnerability : CVE-2026-67339

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - guzzlehttp/guzzle versions before 7.14.2 fail to properly isolate Proxy-Authorization headers from origin servers in cURL handlers. Attackers can capture proxy...

Duplicate Advisory: Guzzle: URI fragments disclosed in redirect Referer headers

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-h95v-h523-3mw8. This link is maintained to preserve external references. Original Description guzzlehttp/guzzle versions before 7.15.1 contain an information disclosure vulnerability in RedirectMiddleware. When...

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-2026-67353

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...

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

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...