CVE-2025-24806
published 2025-02-19CVE-2025-24806: Authelia is an open-source authentication and authorization server providing two-factor authentication and single sign-on (SSO) for applications via a web…
PriorityP415low2.3CVSS 4.0
AVNACHATPPRLUINVCNVILVANSCNSINSANEXCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
EPSS
0.35%
26.8th percentile
Authelia is an open-source authentication and authorization server providing two-factor authentication and single sign-on (SSO) for applications via a web portal. If users are allowed to sign in via both username and email the regulation system treats these as separate login events. This leads to the regulation limitations being effectively doubled assuming an attacker using brute-force to find a user password. It's important to note that due to the effective operation of regulation where no user-facing sign of their regulation ban being visible either via timing or via API responses, it's effectively impossible to determine if a failure occurs due to a bad username password combination, or a effective ban blocking the attempt which heavily mitigates any form of brute-force. This occurs because the records and counting process for this system uses the method utilized for sign in rather than the effective username attribute. This has a minimal impact on account security, this impact is increased naturally in scenarios when there is no two-factor authentication required and weak passwords are used. This makes it a bit easier to brute-force a password. A patch for this issue has been applied to versions 4.38.19, and 4.39.0. Users are advised to upgrade. Users unable to upgrade should 1. Not heavily modify the default settings in a way that ends up with shorter or less frequent regulation bans. The default settings effectively mitigate any potential for this issue to be exploited. and 2. Disable the ability for users to login via an email address.
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| authelia | authelia | < 4.38.19 | 4.38.19 |
| github.com | authelia_authelia_v4 | >= 0 < 4.38.19 | 4.38.19 |
| msrc | azl3_cmake_3.28.2-6_on_azure_linux_3.0 | — | — |
| msrc | azl3_cmake_3.29.6-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_libuv_1.46.0-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_libuv_1.48.0-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_nodejs_20.10.0-2_on_azure_linux_3.0 | — | — |
| msrc | azl3_nodejs_20.14.0-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_python-gevent_23.9.1-3_on_azure_linux_3.0 | — | — |
| msrc | azl3_python-gevent_23.9.1-4_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| msrc | cbl2_libuv_1.43.0-2_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_nodejs18_18.18.2-4_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_nodejs18_18.18.2-7_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
CVSS provenance
nvdv4.02.3LOWCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vendor_msrc7.3HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
OSV
Authelia applies regulation separately to Username-based logins to Email-based logins in github.com/authelia/authelia
osv·2025-03-03
CVE-2025-24806 Authelia applies regulation separately to Username-based logins to Email-based logins in github.com/authelia/authelia
Authelia applies regulation separately to Username-based logins to Email-based logins in github.com/authelia/authelia
Authelia applies regulation separately to Username-based logins to Email-based logins in github.com/authelia/authelia
OSV
Authelia applies regulation separately to Username-based logins to Email-based logins
osv·2025-02-19
CVE-2025-24806 [LOW] Authelia applies regulation separately to Username-based logins to Email-based logins
Authelia applies regulation separately to Username-based logins to Email-based logins
### Summary
If users are allowed to sign in via both username and email the regulation system treats these as separate login events. This leads to the regulation limitations being effectively doubled assuming an attacker using brute-force to find a user password. It's important to note that due to the effective operation of regulation where no user-facing sign of their regulation ban being visible either via timing or via API responses, it's effectively impossible to determine if a failure occurs due to a bad username password combination, or a effective ban blocking the attempt which heavily mitigates any form of brute-force.
### Details
This occurs because the records and counting process for this s
GHSA
Authelia applies regulation separately to Username-based logins to Email-based logins
ghsa·2025-02-19
CVE-2025-24806 [LOW] CWE-307 Authelia applies regulation separately to Username-based logins to Email-based logins
Authelia applies regulation separately to Username-based logins to Email-based logins
### Summary
If users are allowed to sign in via both username and email the regulation system treats these as separate login events. This leads to the regulation limitations being effectively doubled assuming an attacker using brute-force to find a user password. It's important to note that due to the effective operation of regulation where no user-facing sign of their regulation ban being visible either via timing or via API responses, it's effectively impossible to determine if a failure occurs due to a bad username password combination, or a effective ban blocking the attempt which heavily mitigates any form of brute-force.
### Details
This occurs because the records and counting process for this s
Microsoft
Improper Domain Lookup that potentially leads to SSRF attacks in libuv
vendor_msrc·2024-02-13·CVSS 7.3
CVE-2024-24806 [HIGH] CWE-918 Improper Domain Lookup that potentially leads to SSRF attacks in libuv
Improper Domain Lookup that potentially leads to SSRF attacks in libuv
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
GitHub_M: GitHub_M
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Ref
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-02-19
Published