Medium severity · published Oct 10, 2024
CVE-2024-9312
Authd, through version 0.3.6, did not sufficiently randomize user IDs to prevent collisions
6.4
CVSS
0.3%
EPSS
No
On KEV
Description
Authd, through version 0.3.6, did not sufficiently randomize user IDs to prevent collisions. A local attacker who can register user names could spoof another user's ID and gain their privileges.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AU
Authd · Canonical
before 0.3.6 · source: NVD
Affected product
AU
Authd
Canonical
More from Authd
8.8
CVE-2024-9313
Authd PAM module before version 0.3.5 can allow broker-managed users to impersonate any other user managed by the same broker and perform any PAM operation with it, including…
8.5
CVE-2025-5689
A flaw was found in the temporary user record that authd uses in the pre-auth NSS
7.3
CVE-2026-6970
authd Denial of Service and Local Privilege Escalation
5.9
CVE-2026-102631
authd: Account takeover via username fallback in identity matching after IdP email reassignment