Envoy is a high-performance edge/middle/service proxy. In 1.33.12, 1.34.10, 1.35.6, 1.36.2, and earlier, Envoy’s mTLS certificate matcher for match_typed_subject_alt_names may incorrectly treat certificates containing an embedded null byte (\0) inside an OTHERNAME SAN value as valid matches.
Exploitability
AV:NAC:HPR:HUI:NScope
S:UImpact
C:HI:LA:N5/CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:NOther