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CVE Vulnerability Details :
CVE-2026-25891
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-24 Feb, 2026 | 21:08
Updated At-24 Feb, 2026 | 21:39
Rejected At-
▼CVE Numbering Authority (CNA)
Fiber has an Arbitrary File Read in Static Middleware on Windows

Fiber is an Express inspired web framework written in Go. A Path Traversal (CWE-22) vulnerability in Fiber allows a remote attacker to bypass the static middleware sanitizer and read arbitrary files on the server file system on Windows. This affects Fiber v3 through version 3.0.0. This has been patched in Fiber v3 version 3.1.0.

Affected Products
Vendor
gofiber
Product
fiber
Versions
Affected
  • >= 3.0.0, < 3.1.0
Problem Types
TypeCWE IDDescription
CWECWE-22CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Type: CWE
CWE ID: CWE-22
Description: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Metrics
VersionBase scoreBase severityVector
4.07.7HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
Version: 4.0
Base score: 7.7
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/gofiber/fiber/security/advisories/GHSA-m3c2-496v-cw3v
x_refsource_CONFIRM
https://github.com/gofiber/fiber/pull/4064
x_refsource_MISC
https://github.com/gofiber/fiber/commit/59133702301c2ab7b776dd123b474cbd995f2c86
x_refsource_MISC
Hyperlink: https://github.com/gofiber/fiber/security/advisories/GHSA-m3c2-496v-cw3v
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/gofiber/fiber/pull/4064
Resource:
x_refsource_MISC
Hyperlink: https://github.com/gofiber/fiber/commit/59133702301c2ab7b776dd123b474cbd995f2c86
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found