CVE-2022-21679 is a critical vulnerability affecting Istio versions 1.12.0 and 1.12.1, where authorization policies using 'hosts' or 'notHosts' fields can be bypassed or incorrectly applied when a 1.12 control plane interacts with a 1.11 data plane. This bug causes these fields to always match, regardless of the actual host header. With a CVSS score of 9.8 (Critical), it presents a severe risk due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.12.0CPE matchmatch criteria | cpe:2.3:a:istio:istio:1.12.0:-:*:*:*:*:*:* | ||
1.12.0CPE matchmatch criteria | cpe:2.3:a:istio:istio:1.12.0:alpha0:*:*:*:*:*:* | ||
1.12.0CPE matchmatch criteria | cpe:2.3:a:istio:istio:1.12.0:alpha1:*:*:*:*:*:* | ||
1.12.0CPE matchmatch criteria | cpe:2.3:a:istio:istio:1.12.0:alpha5:*:*:*:*:*:* | ||
1.12.0CPE matchmatch criteria | cpe:2.3:a:istio:istio:1.12.0:beta0:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.