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NVD Vulnerability Details :
CVE-2025-54801
Awaiting Analysis
More InfoOfficial Page
Source-security-advisories@github.com
View Known Exploited Vulnerability (KEV) details
Published At-06 Aug, 2025 | 00:15
Updated At-07 Aug, 2025 | 14:15

Fiber is an Express inspired web framework written in Go. In versions 2.52.8 and below, when using Fiber's Ctx.BodyParser to parse form data containing a large numeric key that represents a slice index (e.g., test.18446744073704), the application crashes due to an out-of-bounds slice allocation in the underlying schema decoder. The root cause is that the decoder attempts to allocate a slice of length idx + 1 without validating whether the index is within a safe or reasonable range. If the idx is excessively large, this leads to an integer overflow or memory exhaustion, causing a panic or crash. This is fixed in version 2.52.9.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.08.7HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-789Secondarysecurity-advisories@github.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/gofiber/fiber/commit/e115c08b8f059a4a031b492aa9eef0712411853dsecurity-advisories@github.com
N/A
https://github.com/gofiber/fiber/security/advisories/GHSA-qx2q-88mx-vhg7security-advisories@github.com
N/A
https://github.com/gofiber/fiber/security/advisories/GHSA-qx2q-88mx-vhg7134c704f-9b21-4f2e-91b3-4a467353bcc0
N/A
Change History
0Changes found

Details not found