CVE-2026-41263
6 advisories.
Go/github.com/traefik/traefik/v3 CVE-2026-41263: low 3.7
Traefik: A timing side-channel vulnerability allows for valid username enumeration via BasicAuth middleware
Action: Upgrade github.com/traefik/traefik/v3 to 3.6.14 or later.
go get github.com/traefik/traefik/v3@v3.7.0-rc.2go get github.com/traefik/traefik/v3@v3.6.14Affected
| introduced | fixed | last affected |
|---|---|---|
| 3.7.0-ea.1 | 3.7.0-rc.2 | - |
| 3.0.0-beta1 | 3.6.14 | - |
Fixed versions
| 3.7.0-rc.2 | 3.6.14 |
Sources
- osv: GHSA-6x2q-h3cr-8j2h
- https://github.com/traefik/traefik/security/advisories/GHSA-6x2q-h3cr-8j2h
- https://nvd.nist.gov/vuln/detail/CVE-2026-41263
- https://github.com/traefik/traefik
- https://github.com/traefik/traefik/releases/tag/v2.11.43
- https://github.com/traefik/traefik/releases/tag/v3.6.14
- https://github.com/traefik/traefik/releases/tag/v3.7.0-rc.2
CVE-2026-41263 · published · modified · JSON
Go/github.com/traefik/traefik/v2 CVE-2026-41263: low 3.7
Traefik: A timing side-channel vulnerability allows for valid username enumeration via BasicAuth middleware
Action: Upgrade github.com/traefik/traefik/v2 to 2.11.43 or later.
go get github.com/traefik/traefik/v2@v2.11.43Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 2.11.43 | - |
Fixed versions
| 2.11.43 |
Sources
- osv: GHSA-6x2q-h3cr-8j2h#Go/github.com/traefik/traefik/v2
- https://github.com/traefik/traefik/security/advisories/GHSA-6x2q-h3cr-8j2h
- https://nvd.nist.gov/vuln/detail/CVE-2026-41263
- https://github.com/traefik/traefik
- https://github.com/traefik/traefik/releases/tag/v2.11.43
- https://github.com/traefik/traefik/releases/tag/v3.6.14
- https://github.com/traefik/traefik/releases/tag/v3.7.0-rc.2
CVE-2026-41263 · published · modified · JSON
Go/github.com/traefik/traefik CVE-2026-41263: low 3.7
Traefik: A timing side-channel vulnerability allows for valid username enumeration via BasicAuth middleware
Action: No fix published. Pin and monitor.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | - | 1.7.34 |
Fixed versions
No fixed version in the source.
Sources
- osv: GHSA-6x2q-h3cr-8j2h#Go/github.com/traefik/traefik
- https://github.com/traefik/traefik/security/advisories/GHSA-6x2q-h3cr-8j2h
- https://nvd.nist.gov/vuln/detail/CVE-2026-41263
- https://github.com/traefik/traefik
- https://github.com/traefik/traefik/releases/tag/v2.11.43
- https://github.com/traefik/traefik/releases/tag/v3.6.14
- https://github.com/traefik/traefik/releases/tag/v3.7.0-rc.2
CVE-2026-41263 · published · modified · JSON
Go/github.com/traefik/traefik CVE-2026-41263: unknown
Traefik: A timing side-channel vulnerability allows for valid username enumeration via BasicAuth middleware in github.com/traefik/traefik
Action: No fix published. Pin and monitor.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | - | - |
Fixed versions
No fixed version in the source.
Sources
- osv: GO-2026-5195
- https://github.com/traefik/traefik/security/advisories/GHSA-6x2q-h3cr-8j2h
- https://nvd.nist.gov/vuln/detail/CVE-2026-41263
- https://github.com/traefik/traefik/releases/tag/v2.11.43
- https://github.com/traefik/traefik/releases/tag/v3.6.14
- https://github.com/traefik/traefik/releases/tag/v3.7.0-rc.2
CVE-2026-41263 · published · modified · JSON
Go/github.com/traefik/traefik/v2 CVE-2026-41263: unknown
Traefik: A timing side-channel vulnerability allows for valid username enumeration via BasicAuth middleware in github.com/traefik/traefik
Action: Upgrade github.com/traefik/traefik/v2 to 2.11.43 or later.
go get github.com/traefik/traefik/v2@v2.11.43Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 2.11.43 | - |
Fixed versions
| 2.11.43 |
Sources
- osv: GO-2026-5195#Go/github.com/traefik/traefik/v2
- https://github.com/traefik/traefik/security/advisories/GHSA-6x2q-h3cr-8j2h
- https://nvd.nist.gov/vuln/detail/CVE-2026-41263
- https://github.com/traefik/traefik/releases/tag/v2.11.43
- https://github.com/traefik/traefik/releases/tag/v3.6.14
- https://github.com/traefik/traefik/releases/tag/v3.7.0-rc.2
CVE-2026-41263 · published · modified · JSON
Go/github.com/traefik/traefik/v3 CVE-2026-41263: unknown
Traefik: A timing side-channel vulnerability allows for valid username enumeration via BasicAuth middleware in github.com/traefik/traefik
Action: Upgrade github.com/traefik/traefik/v3 to 3.6.14 or later.
go get github.com/traefik/traefik/v3@v3.6.14go get github.com/traefik/traefik/v3@v3.7.0-rc.2Affected
| introduced | fixed | last affected |
|---|---|---|
| 3.0.0-beta1 | 3.6.14 | - |
| 3.7.0-ea.1 | 3.7.0-rc.2 | - |
Fixed versions
| 3.6.14 | 3.7.0-rc.2 |
Sources
- osv: GO-2026-5195#Go/github.com/traefik/traefik/v3
- https://github.com/traefik/traefik/security/advisories/GHSA-6x2q-h3cr-8j2h
- https://nvd.nist.gov/vuln/detail/CVE-2026-41263
- https://github.com/traefik/traefik/releases/tag/v2.11.43
- https://github.com/traefik/traefik/releases/tag/v3.6.14
- https://github.com/traefik/traefik/releases/tag/v3.7.0-rc.2
CVE-2026-41263 · published · modified · JSON