CVE-2026-26308
1 advisory.
Go/github.com/envoyproxy/envoy CVE-2026-26308: high 7.5, EPSS 0.36%
Envoy has RBAC Header Validation Bypass via Multi-Value Header Concatenation
Action: Upgrade github.com/envoyproxy/envoy to 1.34.13 or later.
go get github.com/envoyproxy/envoy@v1.37.1go get github.com/envoyproxy/envoy@v1.36.5go get github.com/envoyproxy/envoy@v1.35.9go get github.com/envoyproxy/envoy@v1.34.13Affected
| introduced | fixed | last affected |
|---|---|---|
| 1.37.0 | 1.37.1 | - |
| 1.36.0 | 1.36.5 | - |
| 1.35.0 | 1.35.9 | - |
| 0 | 1.34.13 | - |
Fixed versions
| 1.37.1 | 1.36.5 | 1.35.9 | 1.34.13 |
Sources
- osv: GHSA-ghc4-35x6-crw5
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-ghc4-35x6-crw5
- https://nvd.nist.gov/vuln/detail/CVE-2026-26308
- https://github.com/envoyproxy/envoy/commit/b6ba0b2294b98484fb0ed8556897d1073cc27867
- https://github.com/envoyproxy/envoy
CVE-2026-26308 · published · modified · JSON