Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| gofiber | fiber | >= 2.52.6, < 2.52.7 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | govulncheck-vulndb | 0.0.20250527T204717-1.1 | openSUSE-SU-2025:15179-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | gatus +1 | 5.17.0-r3 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/gofiber/fiber | all versions | — | GO-2025-3706 |
| Go | github.com/gofiber/fiber/v2 | >= 2.52.6, < 2.52.7 | 2.52.7 | GHSA-hg3g-gphw-5hhm |
Advisories 1
- openSUSE-SU-2025:15179-1 govulncheck-vulndb-0.0.20250527T204717-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026