CVE-2026-33074 | Discourse up to 2026.1.2/2026.2.1 privileges management

VDB-354476 · CVE-2026-33074 · EUVD-2026-17569 DISCOURSE UP TO 2026.1.2/2026.2.1 PRIVILEGES MANAGEMENT HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.4 $0-$5k 3.29+ Summaryinfo A vulnerability labeled as critical has been found in Discourse up to 2026.1.2/2026.2.1. Affected by this issue is some unknown functionality. Such manipulation leads to privileges management. This vulnerability is documented as CVE-2026-33074. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded. Detailsinfo A vulnerability, which was classified as critical, has been found in Discourse up to 2026.1.2/2026.2.1. Affected by this issue is an unknown part. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes: Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, a user may be able to purchase a lower tier subscription but grant themselves the benefits that comes along with a higher tier subscription. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-33074 since 03/17/2026. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068. Upgrading to version 2026.1.3, 2026.2.2 or 2026.3.0 eliminates this vulnerability. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-17569). Productinfo Type Chat Software Name Discourse Version 2026.1.0 2026.1.1 2026.1.2 2026.2.0 2026.2.1 License open-source Website Product: https://github.com/discourse/discourse/ 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: 5.6 VulDB Meta Temp Score: 5.4 VulDB Base Score: 5.6 VulDB Temp Score: 5.4 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Privileges management CWE: CWE-269 / CWE-266 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Discourse 2026.1.3/2026.2.2/2026.3.0 Timelineinfo 03/17/2026 CVE reserved 03/31/2026 +13 days Advisory disclosed 03/31/2026 +0 days VulDB entry created 03/31/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-33074 (🔒) GCVE (CVE): GCVE-0-2026-33074 GCVE (VulDB): GCVE-100-354476 EUVD: 🔒 Entryinfo Created: 03/31/2026 20:09 Updated: 03/31/2026 22:00 Changes: 03/31/2026 20:09 (66), 03/31/2026 22:00 (1) Complete: 🔍 Cache ID: 99:B7C:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸