CVE-2026-25899

HIGH

7.5

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung7.5

SchweregradHIGH

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht2/24/2026

Zuletzt geandert2/25/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

gofiber:fiber

Schwachen (CWE)

CWE-789CWE-770

Referenzen

https://github.com/gofiber/fiber/releases/tag/v3.1.0(security-advisories@github.com)

https://github.com/gofiber/fiber/security/advisories/GHSA-2mr3-m5q5-wgp6(security-advisories@github.com)

IOC Korrelationen

Keine Korrelationen erfasst

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