CVE-2025-54801
- Source
- https://cve.org/CVERecord?id=CVE-2025-54801
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-54801.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-54801
- Aliases
- Downstream
- Related
- Published
- 2025-08-05T23:33:28.221Z
- Modified
- 2026-04-10T05:29:41.144722Z
- Severity
-
- 8.7 (High) CVSS_V4 - 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 CVSS Calculator
- Summary
- Fiber Susceptible to Crash via `BodyParser` Due to Unvalidated Large Slice Index in Decoder
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-789" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/54xxx/CVE-2025-54801.json" }- References
Affected packages
Git / github.com/gofiber/fiber
Affected ranges
- Type
- GIT
- Repo
- https://github.com/gofiber/fiber
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Affected versions
v1.*
v1.0.0
v1.10.0
v1.10.5
v1.11.0
v1.11.1
v1.12.0
v1.12.1
v1.12.2
v1.12.3
v1.12.4
v1.12.5
v1.12.6
v1.13.0
v1.13.1
v1.13.2
v1.13.3
v1.14.1
v1.14.2
v1.14.3
v1.14.4
v1.14.5
v1.14.6
v1.7.1
v1.8.0
v1.8.1
v1.8.2
v1.8.3
v1.8.4
v1.8.41
v1.8.42
v1.8.43
v1.9.0
v1.9.1
v1.9.2
v1.9.3
v1.9.6
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.0.3
v2.0.4
v2.0.5
v2.0.6
v2.1.0
v2.1.1
v2.1.2
v2.1.3
v2.1.4
v2.10.0
v2.11.0
v2.12.0
v2.13.0
v2.14.0
v2.15.0
v2.16.0
v2.17.0
v2.18.0
v2.19.0
v2.2.0
v2.2.1
v2.2.2
v2.2.3
v2.2.4
v2.2.5
v2.20.0
v2.20.1
v2.20.2
v2.21.0
v2.22.0
v2.23.0
v2.24.0
v2.25.0
v2.26.0
v2.27.0
v2.28.0
v2.29.0
v2.3.0
v2.3.1
v2.3.2
v2.3.3
v2.30.0
v2.31.0
v2.32.0
v2.33.0
v2.34.0
v2.34.0-rc.1
v2.34.1
v2.35.0
v2.36.0
v2.37.0
v2.37.0-rc.1
v2.37.1
v2.38.0
v2.38.1
v2.39.0
v2.4.0
v2.4.1
v2.40.0
v2.40.1
v2.41.0
v2.42.0
v2.43.0
v2.44.0
v2.45.0
v2.46.0
v2.47.0
v2.48.0
v2.49.0
v2.49.1
v2.49.2
v2.5.0
v2.50.0
v2.51.0
v2.52.0
v2.52.1
v2.52.2
v2.52.3
v2.52.4
v2.52.5
v2.52.6
v2.52.7
v2.52.8
v2.6.0
v2.7.0
v2.7.1
v2.8.0
v2.9.0