CVE-2026-19601
Last modified
CVE-2026-19601 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, 11.10.x <= 11.10.1 fail to invalidate the stored AD/LDAP bind password when other connection settings (such as the server address) are changed, which allows a System Console administrator to disclose the plaintext bind password to an attacker-controlled server via the Test Connection / diagnostics feature. Mattermost Advisory ID: MMSA-2026-00764. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
Description
Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, 11.10.x <= 11.10.1 fail to invalidate the stored AD/LDAP bind password when other connection settings (such as the server address) are changed, which allows a System Console administrator to disclose the plaintext bind password to an attacker-controlled server via the Test Connection / diagnostics feature. Mattermost Advisory ID: MMSA-2026-00764
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost Server | >= 11.7.0, < 11.7.11 |
| Mattermost | Mattermost Server | >= 11.8.0, < 11.8.6 |
| Mattermost | Mattermost Server | >= 11.9.0, < 11.9.2 |
| Mattermost | Mattermost Server | >= 11.10.0, < 11.10.2 |
References
- https://mattermost.com/security-updatesVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-19601?
How severe is CVE-2026-19601?
How do I fix CVE-2026-19601?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-19595The user-mode syscall verifier z_vrfy_rtio_cqe_get_mempool_b…6.1
- CVE-2026-19596An XML External Entity (XXE) vulnerability exists in the XML…5.9
- CVE-2026-19598The Pods – Custom Content Types and Fields plugin for WordPr…9.8
- CVE-2026-19599ZohoCorp ManageEngine OpManager MSP versions 12.8.709 and be…9.9
- CVE-2026-1960Stored Cross-Site Scripting (XSS) vulnerability in Loggro Py…5.1
- CVE-2026-19600Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7…4.9
- CVE-2026-19603Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7…4.3
- CVE-2026-19607A flaw was found in the first-broker-login flow of the keycl…5.3
- CVE-2026-19608A flaw was found in the group policy provider of Keycloak au…5.3
- CVE-2026-1961A flaw was found in Foreman. A remote attacker could exploit…8.8
- CVE-2026-19610A flaw was found in the platform-mbean component of JBoss EA…6.5
- CVE-2026-19611A flaw was found in WildFly Elytron. Password hashing and ve…7.4
Are you affected by CVE-2026-19601?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST