CVE-2026-54445
Impact
Vantage6 currently provides an initial user with username root and password root. This is not ideal for the following reasons:
- Attackers know that almost all vantage6 servers have a user with username root that probably has admin rights
- The initial password is very weak and it is possible that administrators forget to reset it.
Patches
No
Workarounds
It is possible to delete the root user after it has been used to create other users
References
We could consider doing this like mongodb
Additional info
Luis uses the following patch to mitigate it:
diff --git a/vantage6-server/vantage6/server/init.py b/vantage6-server/vantage6/server/init.py
index ea362c1e..c6dcbbd9 100644
--- a/vantage6-server/vantage6/server/init.py
+++ b/vantage6-server/vantage6/server/init.py
@@ -618,18 +618,30 @@ class ServerApp:
TODO use constant instead of 'Root' literal
root = db.Role.get_by_name("Root")
- log.warn(
- f"Creating root user: "
- f"username={SUPER_USER_INFO['username']}, "
- f"password={SUPER_USER_INFO['password']}"
- )
- # Temporary patch
- # read initial root password from file (docker secret) if provided
- # TODO: This is a workaround so we don't have an insecure vserver
- # at the start. Ideally, we would provide an already hashed
- # password. But as hashing is implemented via @validates on
- # the field 'password', there isn't a nice way around this.
- if os.environ.get("V6_INITIAL_ROOT_PASSWORD_FILE"):
- with open(
- os.environ.get("V6_INITIAL_ROOT_PASSWORD_FILE")
- ) as password_file:
- initial_root_password = password_file.read().strip()
- log.info(
- f"Creating root user with password provided via V6_INITIAL_ROOT_PASSWORD_FILE"
- )
- else:
- initial_root_password = SUPER_USER_INFO["password"]
- log.warn(f"Creating root user with default credentials!")
user = db.User(
username=SUPER_USER_INFO["username"],
roles=[root],
organization=org,
email="root@domain.ext",
- password=SUPER_USER_INFO["password"],
- password=initial_root_password,
failed_login_atte
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Exploitation outlook
- Low exploitation risk0.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all EPSS-scored CVEs.
Advisory coverage (1)
- mediumGHSA-fgmc-2hqj-86v4: Vantage6: Set admin user and password from environment or configurationghsa · 2026-06-05
External references
Embed the live status
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[](https://www.csirts.com/cve/CVE-2026-54445)