CVE-2026-116516
Last modified
CVE-2026-116516 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Mattermost versions <=11.9 11.1.9 11.5.8 11.10.7.0 fail to validate Zoom chat line length before slicing which allows an authenticated attacker to crash the Agents plugin via summarizing a Zoom chat transcription containing short continuation lines. Mattermost Advisory ID: MMSA-2026-00723.
Description
Mattermost versions <=11.9 11.1.9 11.5.8 11.10.7.0 fail to validate Zoom chat line length before slicing which allows an authenticated attacker to crash the Agents plugin via summarizing a Zoom chat transcription containing short continuation lines. Mattermost Advisory ID: MMSA-2026-00723
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | >= <=11.9 11.1.9 11.5.8 11.10.7.0, <= <=11.9 11.1.9 11.5.8 11.10.7.0 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-116516?
How severe is CVE-2026-116516?
How do I fix CVE-2026-116516?
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-2026-116506A vulnerability was determined in TOTOLINK A950RG 4.1.2cu.52…9.9
- CVE-2026-116507A vulnerability was identified in TOTOLINK A950RG 4.1.2cu.52…5.3
- CVE-2026-116508A security flaw has been discovered in TOTOLINK A950RG 4.1.2…10
- CVE-2026-11651Use after free in Network in Google Chrome prior to 149.0.78…9.6
- CVE-2026-116514A weakness has been identified in itsourcecode Airline Reser…4.3
- CVE-2026-116515A security vulnerability has been detected in itsourcecode O…6.3
- CVE-2026-11652Use after free in Extensions in Google Chrome prior to 149.0…8.3
- CVE-2026-11653Inappropriate implementation in Extensions in Google Chrome …6.5
- CVE-2026-116531HTTP::Body versions before 1.23_01 for Perl lose track of ch…
- CVE-2026-116538HtmlSanitizer before 9.2.1039 and 10.0 prereleases before 10…4.7
- CVE-2026-116539Netty netty-tcnative before 2.0.84.Final contains a heap buf…5.9
- CVE-2026-11654Use after free in CameraCapture in Google Chrome on Mac prio…9.6
Are you affected by CVE-2026-116516?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST