CVE-2026-115474: zulip · Missing Authorization
Affects zulipSource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium : upgrade to 12.2 when convenient.
Data as of 4 Nov 2026, 19:43 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 6.5 |
|---|
- Patch
- Available – fixed in 12.2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 4 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 4 Nov 2026.
What to do
Upgrade zulip and zulip/zulip to 12.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| zulipzulip | Affected
| Fixed in
|
GitHubzulip/zulippkg:github/zulip/zulipOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade Zulip to version 12.2 or later, where this authorization flaw is fixed. No other mitigation is indicated or required.
Description
Zulip versions from 8.0 up to but not including 12.2 contain a missing authorization vulnerability that allows restricted guest users to access profile information of other users without sending a message. This occurs when the organization setting restricts guests from viewing other users, but saving or editing a direct message draft does not verify sender access to draft recipients. The issue is fixed in version 12.2.
References
- github.com/zulip/zulip/security/advisories/GHSA-vwqp-7j32-xfg5 (opens in a new tab)
- github.com/zulip/zulip/pull/39913 (opens in a new tab)
- github.com/zulip/zulip/commit/1127d4cd3cc17a3cc38435ce57ed52b083c33f97 (opens in a new tab)
- github.com/zulip/zulip/commit/83a4a3a966e6eef11914b80f04426ae114a1970d (opens in a new tab)
- github.com/zulip/zulip/releases/tag/12.2 (opens in a new tab)
- zulip.readthedocs.io/en/latest/overview/changelog.html (opens in a new tab)