Vulnerability · Published Nov 4, 2026 · Assigned by GitHub_M

CVE-2026-115474Zulip: Saving a draft DM to a user bypasses can_access_all_users_group permission

Medium 6.5

In plain English

A medium-severity missing authorization in zulip from zulip. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.3%top 73.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Zulip is an open-source team collaboration tool. From 8.0 until 12.2, in organizations where the Who can view all other users in the organization setting restricted guests from viewing other users, saving or editing a direct message draft did not verify that the sender could access the draft recipients. A guest could thereby gain access to otherwise restricted users' profile information without sending a message. Organizations that did not restrict guest access were unaffected. This issue is fixed in version 12.2.

Affected products (as reported)

Vendor	Product	Versions
zulip	zulip	>= 8.0, < 12.2

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

https://github.com/zulip/zulip/security/advisories/GHSA-vwqp-7j32-xfg5 x_refsource_CONFIRM
https://github.com/zulip/zulip/pull/39913 x_refsource_MISC
https://github.com/zulip/zulip/commit/1127d4cd3cc17a3cc38435ce57ed52b083c33f97 x_refsource_MISC
https://github.com/zulip/zulip/commit/83a4a3a966e6eef11914b80f04426ae114a1970d x_refsource_MISC
https://github.com/zulip/zulip/releases/tag/12.2 x_refsource_MISC
https://zulip.readthedocs.io/en/latest/overview/changelog.html#zulip-server-12-2 x_refsource_MISC