CVE-2022-29226 - CVE House

Back to Database

Status published Critical CVE-2022-29226

Trivial authentication bypass in Envoy

10 CVSS

Vulnerability Description

Envoy is a cloud-native high-performance proxy. In versions prior to 1.22.1 the OAuth filter implementation does not include a mechanism for validating access tokens, so by design when the HMAC signed cookie is missing a full authentication flow should be triggered. However, the current implementation assumes that access tokens are always validated thus allowing access in the presence of any access token attached to the request. Users are advised to upgrade. There is no known workaround for this issue.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2022-29226

Check My Exposure

Credits & Attribution

No credits recorded in the NVD database.

References

More from envoyproxy

View All →

Envoy’s TLS certificate matcher for `match_typed_subject_alt_names` may incorrectly treat certificates containing an embedded null byte

Envoy forwards early CONNECT data in TCP proxy mode

Envoy crashes when JWT authentication is configured with the remote JWKS fetching

Envoy Lua filter use-after-free when oversized rewritten response body causes crash

Envoy allows large requests and responses to cause TCP connection pool crash

Affected Vendor

envoyproxy

View all reports →

Affected Software

envoy

Vulnerable Versions:

< 1.22.1

Timeline

Official Publish: June 9th, 2022

Last Modified: April 23rd, 2025

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1078 Valid Accounts

T1136 Create Account

T1098 Account Manipulation

Privilege Escalation

T1021 Remote Services

Lateral Movement