Is CVE-2026-5599 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-5599 being exploited in the wild.

How severe is CVE-2026-5599?

Informational severity, with a CVSS score of 7.3, published 5 April 2026.

Is there a fix for CVE-2026-5599?

A patch was published on 2026-04-05. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-5599 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-5599?

Check whether you run Pretix Venueless at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-5599: pretix Venueless improper isolation allows cross-world user deletion

CVE-2026-5599 · Severity: info · CVSS 7.3 · Published 2026-04-05

Venueless, a platform for virtual events, contains a flaw that allows a user with administrative permissions in one event 'world' to delete user accounts in other completely separate event worlds. This could lead to significant disruption of service and unauthorized loss of attendee data across different organizations or events hosted on the same platform. An attacker only needs basic API access and standard user management permissions within their own event to perform this action.

Technologies: Pretix Venueless. Vendors: Pretix.

Quick answers

Is CVE-2026-5599 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-5599 being exploited in the wild.
How severe is CVE-2026-5599?: Informational severity, with a CVSS score of 7.3, published 5 April 2026.
Which products and versions are affected?: Pretix Venueless < 02b9cbe5.
Is there a fix for CVE-2026-5599?: A patch was published on 2026-04-05. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-5599 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-5599?: Check whether you run Pretix Venueless at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

Venueless suffers from an improper isolation vulnerability (CWE-653) within its API. The root cause is a failure to properly scope user deletion requests to the specific 'world' (instance) the authenticated user belongs to. An attacker with 'manage users' permissions and API access can craft requests that target user identifiers belonging to other worlds. This allows for cross-tenant data modification and deletion. The vulnerability is exploitable over the network with low privileges (PR:L) but requires specific attack requirements (AT:P) related to identifying target user IDs. The issue has been addressed in commit 02b9cbe5.

Affected products

pretix Venueless < 02b9cbe5

Timeline

2026-04-05: disclosed
2026-04-05: advisory
2026-04-05: patched

References

https://github.com/venueless/venueless/security/advisories/GHSA-gwjc-33fv-2gh4

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