medium4.4
CVE-2026-102877
Fider before 0.38.0 contains a server-side request forgery vulnerability due to a time-of-check time-of-use gap in URL validation for webhooks and custom OAuth…
Impact
Fider before 0.38.0 contains a server-side request forgery vulnerability due to a time-of-check time-of-use gap in URL validation for webhooks and custom OAuth provider endpoints. Administrators controlling DNS can perform DNS rebinding attacks to make the Fider server send requests to internal services or cloud metadata endpoints.
Affected products
| Product | Affected versions |
|---|---|
| Fider | before 0.38.0 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/getfider/fider
- https://github.com/getfider/fider/blob/v0.37.0/app/pkg/validate/general.go
- https://github.com/getfider/fider/blob/v0.37.0/app/services/httpclient/httpclient.go
- https://github.com/getfider/fider/commit/45f5627b9fd15b912fb9092635c863fb4c91dd69
- https://github.com/getfider/fider/releases/tag/v0.38.0
- https://github.com/getfider/fider/security/advisories/GHSA-whx4-hxwq-qgjh
- https://www.vulncheck.com/advisories/fider-before-0.38.0-ssrf-via-dns-rebinding-in-webhook-validation