CVE-2026-53900— Cookie injection was possible when opening a PDF link
Possible ATT&CK Techniques 1AI
T1567 · Exfiltration Over Web ServiceAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mozilla | Firefox for iOS | 152.0≤ * | unaffected |
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I. Basic Information for CVE-2026-53900
Vulnerability Information
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Vulnerability Title
Cookie injection was possible when opening a PDF link
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Mozilla Firefox for iOS 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox for iOS是Mozilla基金会的移动端网页浏览器。 Firefox for iOS 152.0之前版本存在安全漏洞，该漏洞源于TemporaryDocument中存在跨源HTTP重定向时保留初始PDF请求设置的cookies问题，可能导致恶意站点向不相关目标域名的请求中注入任意cookies。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Mozilla | Firefox for iOS | 152.0 ~ * | - |
II. Public POCs for CVE-2026-53900
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Patches & Fixes for CVE-2026-53900 (1)
Vendor Advisories for CVE-2026-53900 (1)
Same Patch Batch · Mozilla · 2026-06-16 · 44 CVEs total
| CVE-2026-12300 | Memory safety bug fixed in Firefox 152 | |
| CVE-2026-12297 | Sandbox escape due to incorrect boundary conditions in the Networking component | |
| CVE-2026-12298 | Memory safety bug fixed in Firefox 152 | |
| CVE-2026-12296 | Sandbox escape in the Security: Process Sandboxing component | |
| CVE-2026-12293 | Use-after-free in the Graphics: WebGPU component | |
| CVE-2026-12292 | Incorrect boundary conditions in the Web Audio component | |
| CVE-2026-12291 | Use-after-free in the Networking: HTTP component | |
| CVE-2026-12290 | Memory safety bug fixed in Firefox 152 | |
| CVE-2026-12289 | Privilege escalation in the Graphics: WebRender component | |
| CVE-2026-12294 | Sandbox escape in the DOM: Workers component | |
| CVE-2026-12299 | JIT miscompilation in the DOM: Core & HTML component | |
| CVE-2026-12301 | Memory safety bug fixed in Firefox 152 | |
| CVE-2026-12302 | Mitigation bypass in the DOM: Security component | |
| CVE-2026-12303 | Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU compon | |
| CVE-2026-12304 | Same-origin policy bypass in the Networking: Cookies component | |
| CVE-2026-12305 | Memory safety bug fixed in Firefox 152 | |
| CVE-2026-12306 | Memory safety bug fixed in Firefox 152 | |
| CVE-2026-12307 | Memory safety bug fixed in Firefox 152 | |
| CVE-2026-12308 | Memory safety bug fixed in Firefox 152 | |
| CVE-2026-12309 | Memory safety bug fixed in Firefox 152 |
Showing top 20 of 44 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Firefox for iOS
- CVE-2026-13356
Interrupted navigation could allow address bar origin spoofi - CVE-2026-53899
Cross-origin cookies could be leaked when opening a PDF link - CVE-2026-9308
Arbitrary JavaScript execution in Reader View due to wrong H - CVE-2026-9309
Arbitrary JavaScript execution in internal pages via Reader - CVE-2026-9078
Firefox iOS RTL Domain Rendering Issue in Link Preview
Same vendor: Mozilla
- CVE-2026-13356
Interrupted navigation could allow address bar origin spoofi - CVE-2026-57963
Chat UI manipulation by injection - CVE-2026-57962
Denial-of-service via malicious LDAP address-book server - CVE-2026-14241
Memory safety bugs fixed in Firefox 152.0.4 - CVE-2026-53899
Cross-origin cookies could be leaked when opening a PDF link
V. Comments for CVE-2026-53900
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