CVE-2022-31134 Zulip Server public data export contains attachments that are non-public
Administrators can access private message attachments via public data exports, violating privacy expectations in multi-tenant deployments.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-31134?
CVE-2022-31134 is a medium-severity vulnerability in zulip, published on 12 Jul 2022. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Zulip is an open-source team collaboration tool. Zulip Server versions 2.1.0 above have a user interface tool, accessible only to server owners and server administrators, which provides a way to download a "public data" export. While this export is only accessible to administrators, in many configurations server administrators are not expected to have access to private messages and private streams. However, the "public data" export which administrators could generate contained the attachment contents for all attachments, even those from private messages and streams. Zulip Server version 5.4 contains a patch for this issue.
Which versions are affected by CVE-2022-31134?
It affects 1 product.
Products include Zulip Zulip Server.
How do I fix CVE-2022-31134?
No fix has been published for CVE-2022-31134 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-31134 being exploited?
There is no known exploitation of CVE-2022-31134 in the wild and no public exploit code.
Other vulnerabilities in zulip
- CVE-2019-18933 Information disclosure in n/a
- CVE-2020-15070 Code injection in n/a
- CVE-2017-0910 Missing authorization in Zulip Server
- CVE-2025-31478 Zulip Authentication Backend Configuration Bypass
- CVE-2023-33186 Cross-site scripting vulnerability in Zulip Server development branch via topic tooltip
Sources
Also known as GHSA-58pm-88xp-7x9m.