VDB
GHSA-6x2q-h3cr-8j2h
GHSA-6x2q-h3cr-8j2h
PUBLISHED
CVSS 3.700000047683716 LOW
Record from GitHub Advisory Database · Published April 24, 2026
Traefik: A timing side-channel vulnerability allows for valid username enumeration via BasicAuth middleware
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| github.com/traefik/traefik | Go Modules | 1.7.34 |
| github.com/traefik/traefik/v2 | Go Modules | 2.11.43 |
Risk scores
CVSS 3.1
3.700000047683716
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products
| Vendor | Product | Versions |
|---|---|---|
| github.com | traefik/traefik | 0 |
| github.com | traefik/traefik/v2 | 0, 2.11.43 |
| github.com | traefik/traefik/v3 | 3.6.14, 3.0.0-beta1, 3.7.0-ea.1 |
Timeline
- Apr 24, 2026 CVE Published
- May 6, 2026 CVE Updated
- May 7, 2026 Security Advisory
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln GHSA-6x2q-h3cr-8j2h
vulnetix vdb fixes GHSA-6x2q-h3cr-8j2h
Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/GHSA-6x2q-h3cr-8j2h/fixes/registry"
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References
- Traefik: A timing side-channel vulnerability allows for valid username enumeration via BasicAuth middleware advisory
- https://github.com/traefik/traefik/releases/tag/v2.11.43 url
- https://github.com/traefik/traefik/releases/tag/v3.6.14 url
- https://github.com/traefik/traefik/releases/tag/v3.7.0-rc.2 url
- https://github.com/traefik/traefik/security/advisories/GHSA-6x2q-h3cr-8j2h url
- https://nvd.nist.gov/vuln/detail/CVE-2026-41263 advisory
- https://github.com/traefik/traefik package