VideoLAN VLC up to 3.6.x on Android Remote Access Server user_session excessive authentication

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability was found in VideoLAN VLC up to 3.6.x on Android. It has been rated as problematic. Affected by this issue is some unknown functionality of the component Remote Access Server. This manipulation of the argument user_session causes excessive authentication. The identification of this vulnerability is CVE-2026-26227. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in VideoLAN VLC up to 3.6.x on Android. It has been declared as problematic. Affected by this vulnerability is an unknown function of the component Remote Access Server. The manipulation of the argument user_session with an unknown input leads to a excessive authentication vulnerability. The CWE definition for the vulnerability is CWE-307. The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks. As an impact it is known to affect confidentiality. The summary by CVE is:

VideoLAN VLC for Android prior to version 3.7.0 contains an authentication bypass in the Remote Access Server feature due to missing or insufficient rate limiting on one-time password (OTP) verification. The Remote Access Server uses a 4-digit OTP and does not enforce effective throttling or lockout within the OTP validity window, allowing an attacker with network reachability to the server to repeatedly attempt OTP verification until a valid user_session cookie is issued. Successful exploitation results in unauthorized access to the Remote Access interface, limited to media files explicitly shared by the VLC for Android user.

The weakness was shared by XavLimSG. It is possible to read the advisory at videolan.org. This vulnerability is known as CVE-2026-26227 since 02/11/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1110.001 according to MITRE ATT&CK.

Upgrading to version 3.7.0 eliminates this vulnerability. The upgrade is hosted for download at github.com.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-0549). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Open Source VLC

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.7
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Excessive authentication
CWE: CWE-307 / CWE-799 / CWE-400
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: VLC 3.7.0

Timelineinfo

02/11/2026 CVE reserved
02/26/2026 +15 days Advisory disclosed
02/26/2026 +0 days VulDB entry created
03/01/2026 +3 days VulDB entry last update

Sourcesinfo

Vendor: videolan.org

Advisory: videolan.org
Researcher: XavLimSG
Status: Confirmed

CVE: CVE-2026-26227 (🔒)
GCVE (CVE): GCVE-0-2026-26227
GCVE (VulDB): GCVE-100-348019
CERT Bund: WID-SEC-2026-0549 - VLC für Android: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20130704

Entryinfo

Created: 02/26/2026 19:30
Updated: 03/01/2026 15:35
Changes: 02/26/2026 19:30 (72), 02/27/2026 11:34 (7), 03/01/2026 15:35 (12)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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