# Zulip vulnerabilities

Source: https://junglewise.ai/threats/technologies/zulip  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 12 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/zulip.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 4 vulnerabilities in Zulip: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-115574, was published on 4 November 2026. 2 vulnerabilities in the last four weeks, up from none in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 2
- Last 90 days: 2
- All time: 4 (0 critical, 0 exploited in the wild)

## About Zulip

Zulip is an open-source collaborative chat application that combines real-time chat with a threaded model for asynchronous communication.

## Latest Zulip vulnerabilities

- [CVE-2026-115574: Zulip custom profile fields information disclosure](https://junglewise.ai/threats/cve-2026-115574-zulip-is-an-open-source-team-collaboration-tool-from-11-0-until) (medium, CVSS 5.3, published 4 Nov 2026)
- [CVE-2026-115474: Zulip authorization bypass in draft message handling](https://junglewise.ai/threats/cve-2026-115474-zulip-is-an-open-source-team-collaboration-tool-from-8-0-until) (medium, CVSS 6.5, published 4 Nov 2026)
- [CVE-2026-26058: Zulip Server path traversal in data import utility](https://junglewise.ai/threats/cve-2026-26058-zulip-server-path-traversal-in-data-import-utility) (medium, CVSS 6.1, published 3 Apr 2026)
- [CVE-2026-25742: Zulip missing authorization for anonymous access to attachments and topics](https://junglewise.ai/threats/cve-2026-25742-zulip-missing-authorization-for-anonymous-access-to-attachments) (medium, CVSS 5.3, published 3 Apr 2026)

## Most severe Zulip vulnerabilities

- [CVE-2026-115474: Zulip authorization bypass in draft message handling](https://junglewise.ai/threats/cve-2026-115474-zulip-is-an-open-source-team-collaboration-tool-from-8-0-until) (medium, CVSS 6.5, published 4 Nov 2026)
- [CVE-2026-26058: Zulip Server path traversal in data import utility](https://junglewise.ai/threats/cve-2026-26058-zulip-server-path-traversal-in-data-import-utility) (medium, CVSS 6.1, published 3 Apr 2026)
- [CVE-2026-25742: Zulip missing authorization for anonymous access to attachments and topics](https://junglewise.ai/threats/cve-2026-25742-zulip-missing-authorization-for-anonymous-access-to-attachments) (medium, CVSS 5.3, published 3 Apr 2026)
- [CVE-2026-115574: Zulip custom profile fields information disclosure](https://junglewise.ai/threats/cve-2026-115574-zulip-is-an-open-source-team-collaboration-tool-from-11-0-until) (medium, CVSS 5.3, published 4 Nov 2026)

## Vulnerabilities per week

2 vulnerabilities in the last four weeks, up from none in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 2 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Zulip technologies

- [Zulip Server](https://junglewise.ai/threats/technologies/zulip-server): 5 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Zulip vulnerabilities", https://junglewise.ai/threats/technologies/zulip, 12 November 2026.