Traefik: BasicAuth singleflight coalescing reintroduces an unauthenticated username-enumeration timing oracle
Traefik: BasicAuth singleflight coalescing reintroduces an unauthenticated username-enumeration timing oracle. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/traefik/traefik from v3.6.11 before v3.7.13.
GO-2026-6558
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: osv:GO-2026-6558
github.com/traefik/traefik
Source reference: /affected/0/package/name
- 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.
[
{
"ranges": [
{
"type": "SEMVER",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "github.com/traefik/traefik",
"purl": "pkg:golang/github.com/traefik/traefik",
"ecosystem": "Go"
},
"database_specific": {
"source": "https://vuln.go.dev/ID/GO-2026-6558.json"
},
"ecosystem_specific": {
"custom_ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.6.11"
},
{
"fixed": "3.7.13"
}
]
}
]
}
}
]- Related CVEs
- CVE-2026-88010
Source reference:
/aliases
Publisher severity
No explicit severity was provided.
- Event
- #63836 · Revision 1
- Added to Heist Feed
- Publisher date