Vendor
Zulip vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 8 vulnerabilities in Zulip: 0 in the last 7 days and 5 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. 5 vulnerabilities in the last four weeks, up from none in the four before. 2 technologies have a page of their own.
- Last 7 days
- 0
- Last 90 days
- 5
- Critical, all time
- 0
- Exploited in the wild
- 0
About Zulip
Open source team chat and collaboration platform with threaded messaging and topic organization.
Zulip technologies
Latest Zulip vulnerabilities
- CVE-2026-115574: Zulip custom profile fields information disclosuremediumCVSS 5.3
- CVE-2026-115474: Zulip authorization bypass in draft message handlingmediumCVSS 6.5
- CVE-2026-97701: Zulip Server missing content length limit in render endpointmediumCVSS 6.5
- CVE-2026-102893: Zulip Server OpenID Connect email verification bypassinfoEPSS 0.4%
- CVE-2026-100404: Zulip Server information disclosure in event queuemediumCVSS 6.5EPSS 0.4%
- CVE-2026-40300: Zulip Server improper access control in message history APImediumCVSS 6.5
- CVE-2026-26058: Zulip Server path traversal in data import utilitymediumCVSS 6.1EPSS 0.2%
- CVE-2026-25742: Zulip missing authorization for anonymous access to attachments and topicsmediumCVSS 5.3EPSS 0.3%
Most severe Zulip vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-100404: Zulip Server information disclosure in event queuemediumCVSS 6.5EPSS 0.4%
- CVE-2026-115474: Zulip authorization bypass in draft message handlingmediumCVSS 6.5
- CVE-2026-97701: Zulip Server missing content length limit in render endpointmediumCVSS 6.5
- CVE-2026-40300: Zulip Server improper access control in message history APImediumCVSS 6.5
- CVE-2026-26058: Zulip Server path traversal in data import utilitymediumCVSS 6.1EPSS 0.2%
- CVE-2026-25742: Zulip missing authorization for anonymous access to attachments and topicsmediumCVSS 5.3EPSS 0.3%
- CVE-2026-115574: Zulip custom profile fields information disclosuremediumCVSS 5.3
- CVE-2026-102893: Zulip Server OpenID Connect email verification bypassinfoEPSS 0.4%
Vulnerabilities per week
5 vulnerabilities in the last four weeks, up from none in the four before. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 2 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 3 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Zulip vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/vendors/zulip)<a href="https://junglewise.ai/threats/vendors/zulip"><img src="https://junglewise.ai/threats/vendors/zulip/badge.svg" alt="Zulip vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/zulip.json, and this page as text at https://junglewise.ai/threats/vendors/zulip.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Zulip vulnerabilities", https://junglewise.ai/threats/vendors/zulip, 12 November 2026.