CVE-2026-2673 · cross-distro fix matrix

CVE-2026-2673: Issue summary: An OpenSSL TLS 1.3 server may fail to negotiate the expected preferred key exchange group when its key exchange group configuration includes the default by using the 'DEFAULT' keyword. Impact summary: A less preferred key exchange may be used even when a more preferred group is suppo

Affects 2 Linux releases across 2 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2026-2673 has a known fix. Run the listed command on that distro to remediate.

Debian trixie

Source: Debian Security Tracker

openssl→ fixed in3.5.5-1~deb13u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssl
```

Alpine edge

Source: Alpine secdb

openssl→ fixed in3.5.6-r0
```
apk update && apk add --upgrade openssl
```

Are YOU affected by CVE-2026-2673?

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