CVE-2026-53900 Cookie injection was possible when opening a PDF link

Firefox for iOS preserved cookies set on the initial PDF request across cross-origin HTTP redirects in TemporaryDocument, allowing a malicious site to inject arbitrary cookies into requests to an unrelated target domain. This vulnerability was fixed in Firefox for iOS 152.0...

PT-2026-49701

Name of the Vulnerable Software and Affected Versions Firefox for iOS versions prior to 152.0 Description Firefox for iOS preserved cookies set on the initial PDF request across cross-origin HTTP redirects in TemporaryDocument. This behavior allows a malicious site to inject arbitrary cookies int...

CVE-2026-9309

Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata. A malicious page could inject markup that changed Reader View behavior and leaked sensitive URL parameters. These parameters could then be used to access internal pages, potentially resulting in arbitrary JavaScrip...

EUVD-2026-33630

Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata. A malicious page could inject markup that changed Reader View behavior and leaked sensitive URL parameters. These parameters could then be used to access internal pages, potentially resulting in arbitrary JavaScrip...

CVE-2026-9309 Arbitrary JavaScript execution in internal pages via Reader View JSON-LD injection

Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata. A malicious page could inject markup that changed Reader View behavior and leaked sensitive URL parameters. These parameters could then be used to access internal pages, potentially resulting in arbitrary JavaScrip...

CVE-2026-9308

Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. This vulnerability was...

CVE-2026-9308

CVE-2026-9308 affects Firefox for iOS Reader View. The issue occurs when HTML templates are processed before internal placeholders are replaced, allowing a malicious page to substitute a placeholder with JSON-LD data and potentially execute arbitrary JavaScript. The fix is in Firefox for iOS 151....

CVE-2026-9308

Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. This vulnerability was...

PT-2026-45410

Name of the Vulnerable Software and Affected Versions Firefox for iOS versions prior to 151.2 Description Reader View in Firefox for iOS replaced page content in its HTML template before substituting other internal placeholders. A malicious page could include a placeholder string that was...

PT-2026-43074

Name of the Vulnerable Software and Affected Versions Firefox for iOS versions prior to 151.1 Description Firefox for iOS incorrectly displayed specially crafted right-to-left RTL and internationalized domain names IDNs within link preview UI surfaces. A crafted RTL hostname could visually reorde...

CVE-2026-8706

Firefox for iOS hosted Reader mode on an unauthenticated local web server, allowing another application on the same device to request arbitrary URLs and receive the response rendered with the signed-in user's cookies. This vulnerability was fixed in Firefox for iOS 151.0...

CVE-2026-8706 Sensitive user data could be leaked to other applications through Reader mode

Firefox for iOS hosted Reader mode on an unauthenticated local web server, allowing another application on the same device to request arbitrary URLs and receive the response rendered with the signed-in user's cookies. This vulnerability was fixed in Firefox for iOS 151.0...

Security Vulnerabilities fixed in Firefox for iOS 151.0 — Mozilla

Firefox for iOS hosted Reader mode on an unauthenticated local web server, allowing another application on the same device to request arbitrary URLs and receive the response rendered with the signed-in user's cookies...

CVE-2026-2634

Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains. This vulnerability affects Firefox for iOS 147.4...

CVE-2026-2634

Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains. This vulnerability was fixed in Firefox for iOS 147.4...

CVE-2026-2634 Spoofed web content presented under trusted domains using scripted navigation on Firefox iOS

Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains. This vulnerability was fixed in Firefox for iOS 147.4...

CVE-2026-2634 Spoofed web content presented under trusted domains using scripted navigation on Firefox iOS

Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains. This vulnerability was fixed in Firefox for iOS 147.4...

CVE-2026-2634

The vulnerability CVE-2026-2634 affects Firefox for iOS . Malicious scripts could cause desynchronization between the address bar and web content before a response is received, allowing attacker‑controlled pages to be displayed under spoofed domains. The vulnerability is stated to be fixed in Fir...

Security Vulnerabilities fixed in Firefox for iOS 147.4 — Mozilla

Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains...

Linux Distros Unpatched Vulnerability : CVE-2026-2032

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Malicious scripts that interrupt new tab page loading could cause desynchronization between the address bar and page content, allowing the attacker to spoof...