Go/github.com/refraction-networking/utls CVE-2026-26994: medium 6.5, EPSS 0.30%
ServerHellos are accepted without checking TLS 1.3 downgrade canaries in github.com/refraction-networking/utls
Action: Upgrade github.com/refraction-networking/utls to 1.7.0 or later.
go get github.com/refraction-networking/utls@v1.7.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 1.0.0 | 1.7.0 | - |
Fixed versions
| 1.7.0 |
Sources
- osv: GO-2025-3638
- nvd: CVE-2026-26994
- https://github.com/advisories/GHSA-pmc3-p9hx-jq96
- https://github.com/refraction-networking/utls/commit/f8892761e2a4d29054264651d3a86fda83bc83f9
- https://github.com/refraction-networking/utls/pull/337
- https://github.com/refraction-networking/utls/issues/181
CVE-2026-26994 · published · modified · JSON