Medium
Fider before 0.38.0 SSRF via DNS rebinding in webhook validation
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.
Announced Group revision 1
Original source ↗CVE-2026-102877
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-102877
fider
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "getfider",
"product": "fider",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "0.38.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "0.38.0",
"versionType": "semver"
}
],
"packageURL": "pkg:golang/github.com/getfider/fider",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-102877
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #4830 · Revision 1
- Added to Heist Feed
- Publisher date