CVE-2026-53900 (GCVE-0-2026-53900)

Vulnerability from cvelistv5 – Published: 2026-06-16 11:53 – Updated: 2026-06-16 14:37
VLAI
Title
Cookie injection was possible when opening a PDF link
Summary
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.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-16 14:37 UTC
CWE
  • CWE-345 - Insufficient Verification of Data Authenticity
  • CWE-384 - Session Fixation
Assigner
References
Impacted products
Vendor Product Version CPE status
Mozilla Firefox for iOS Unaffected: 152.0 , ≤ * (rpm)
guessed Create a notification for this product.
Credits
Muneaki Nishimura
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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