CVSS 4.0
7.7 highCVSS: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:PCVE-2025-48075
High (7.7) in gofiber fiber. EPSS 0.5% chance of exploitation in the next 30 days. Fixed in github.com/gofiber/fiber/v2 2.52.7.
Fiber is an Express-inspired web framework written in Go. Starting in version 2.52.6 and prior to version 2.52.7, `fiber.Ctx.BodyParser` can map flat data to nested slices using `key[idx]value` syntax, but when idx is negative, it causes a panic instead of returning an error stating it cannot process the data. Since this data is user-provided, this could lead to denial of service for anyone relying on this `fiber.Ctx.BodyParser` functionality. Version 2.52.7 fixes the issue.
Severity
CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 44% of CVEs (scores of 2026-10-31)
- CWE
- CWE-129
- Published
- Modified
- Record from
- the NVD, synced
Affected
- gofiber:fiber
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-hg3g-gphw-5hhm | Go | github.com/gofiber/fiber/v2 | >=2.52.6 <2.52.7 | 2.52.7 |
| GO-2025-3706 | Go | github.com/gofiber/fiber | all versions | no fix published |
| GO-2025-3706 | Go | github.com/gofiber/fiber/v2 | >=2.52.6 <2.52.7 | 2.52.7 |