CVE-2026-25899 (GCVE-0-2026-25899)
Vulnerability from cvelistv5
Published
2026-02-24 21:11
Modified
2026-02-24 21:37
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Summary
Fiber is an Express inspired web framework written in Go. In versions on the v3 branch prior to 3.1.0, the use of the `fiber_flash` cookie can force an unbounded allocation on any server. A crafted 10-character cookie value triggers an attempt to allocate up to 85GB of memory via unvalidated msgpack deserialization. No authentication is required. Every GoFiber v3 endpoint is affected regardless of whether the application uses flash messages. Version 3.1.0 fixes the issue.
Impacted products
Vendor Product Version
gofiber fiber Version: >= 3.0.0, < 3.1.0
Create a notification for this product.
Show details on NVD website


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