CVE-2026-53622
6 advisories.
Go/github.com/traefik/traefik/v3 CVE-2026-53622: critical 10, EPSS 0.63%
Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts
Action: Upgrade github.com/traefik/traefik/v3 to 3.6.18 or later.
go get github.com/traefik/traefik/v3@v3.7.3go get github.com/traefik/traefik/v3@v3.6.18Affected
| introduced | fixed | last affected |
|---|---|---|
| 3.7.0 | 3.7.3 | - |
| 0 | 3.6.18 | - |
Fixed versions
| 3.7.3 | 3.6.18 |
Sources
- osv: GHSA-9cr8-q42q-g8m7
- https://github.com/traefik/traefik/security/advisories/GHSA-9cr8-q42q-g8m7
- https://nvd.nist.gov/vuln/detail/CVE-2026-53622
- https://github.com/traefik/traefik/pull/13214
- https://access.redhat.com/errata/RHSA-2026:62260
- https://access.redhat.com/security/cve/CVE-2026-53622
- https://bugzilla.redhat.com/show_bug.cgi?id=2491924
- https://community.traefik.io/t/new-security-update-for-traefik-2-11-2-11-48-3-6-3-6-19-and-3-7-3-7-3/29917
- https://github.com/traefik/traefik
- https://github.com/traefik/traefik/compare/v3.6.17...v3.6.18
- https://github.com/traefik/traefik/releases/tag/v3.7.3
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53622.json
CVE-2026-53622 · published · modified · JSON
Go/github.com/traefik/traefik/v2 CVE-2026-53622: critical 10, EPSS 0.63%
Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts
Action: Upgrade github.com/traefik/traefik/v2 to 2.11.51 or later.
go get github.com/traefik/traefik/v2@v2.11.51Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 2.11.51 | - |
Fixed versions
| 2.11.51 |
Sources
- osv: GHSA-9cr8-q42q-g8m7#Go/github.com/traefik/traefik/v2
- https://github.com/traefik/traefik/security/advisories/GHSA-9cr8-q42q-g8m7
- https://nvd.nist.gov/vuln/detail/CVE-2026-53622
- https://github.com/traefik/traefik/pull/13214
- https://access.redhat.com/errata/RHSA-2026:62260
- https://access.redhat.com/security/cve/CVE-2026-53622
- https://bugzilla.redhat.com/show_bug.cgi?id=2491924
- https://community.traefik.io/t/new-security-update-for-traefik-2-11-2-11-48-3-6-3-6-19-and-3-7-3-7-3/29917
- https://github.com/traefik/traefik
- https://github.com/traefik/traefik/compare/v3.6.17...v3.6.18
- https://github.com/traefik/traefik/releases/tag/v3.7.3
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53622.json
CVE-2026-53622 · published · modified · JSON
Go/github.com/traefik/traefik CVE-2026-53622: critical 10, EPSS 0.63%
Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts
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-9cr8-q42q-g8m7#Go/github.com/traefik/traefik
- https://github.com/traefik/traefik/security/advisories/GHSA-9cr8-q42q-g8m7
- https://nvd.nist.gov/vuln/detail/CVE-2026-53622
- https://github.com/traefik/traefik/pull/13214
- https://access.redhat.com/errata/RHSA-2026:62260
- https://access.redhat.com/security/cve/CVE-2026-53622
- https://bugzilla.redhat.com/show_bug.cgi?id=2491924
- https://community.traefik.io/t/new-security-update-for-traefik-2-11-2-11-48-3-6-3-6-19-and-3-7-3-7-3/29917
- https://github.com/traefik/traefik
- https://github.com/traefik/traefik/compare/v3.6.17...v3.6.18
- https://github.com/traefik/traefik/releases/tag/v3.7.3
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53622.json
CVE-2026-53622 · published · modified · JSON
Go/github.com/traefik/traefik CVE-2026-53622: unknown, EPSS 0.63%
Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts 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-2026-5287
- https://github.com/traefik/traefik/security/advisories/GHSA-9cr8-q42q-g8m7
- https://github.com/traefik/traefik/releases/tag/v3.7.3
CVE-2026-53622 · published · modified · JSON
Go/github.com/traefik/traefik/v2 CVE-2026-53622: unknown, EPSS 0.63%
Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts in github.com/traefik/traefik
Action: Upgrade github.com/traefik/traefik/v2 to 2.11.51 or later.
go get github.com/traefik/traefik/v2@v2.11.51Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 2.11.51 | - |
Fixed versions
| 2.11.51 |
Sources
- osv: GO-2026-5287#Go/github.com/traefik/traefik/v2
- https://github.com/traefik/traefik/security/advisories/GHSA-9cr8-q42q-g8m7
- https://github.com/traefik/traefik/releases/tag/v3.7.3
CVE-2026-53622 · published · modified · JSON
Go/github.com/traefik/traefik/v3 CVE-2026-53622: unknown, EPSS 0.63%
Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts in github.com/traefik/traefik
Action: Upgrade github.com/traefik/traefik/v3 to 3.7.3 or later.
go get github.com/traefik/traefik/v3@v3.7.3Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.7.3 | - |
Fixed versions
| 3.7.3 |
Sources
- osv: GO-2026-5287#Go/github.com/traefik/traefik/v3
- https://github.com/traefik/traefik/security/advisories/GHSA-9cr8-q42q-g8m7
- https://github.com/traefik/traefik/releases/tag/v3.7.3
CVE-2026-53622 · published · modified · JSON