Quick answers
- Is CVE-2026-103235 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-103235 being exploited in the wild.
- How severe is CVE-2026-103235?
- Informational severity, published 30 September 2026.
- Which products and versions are affected?
- MISP Project MISP < 2.5.48.
- Is there a fix for CVE-2026-103235?
- A patch was published on 2026-09-25. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-103235 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-103235?
- Check whether you run MISP Project MISP 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
The delegateEvent() function authorizes access only to the event specified in the URL, but then persists the entire caller-submitted request payload without validation, allowing an attacker to inject or modify fields like the primary key and event_id to retarget the delegation. Since a delegation row grants its organization read access to the referenced event, this allows unauthorized access to any event; if the target organization accepts the delegation, ownership transfers and the original record is deleted. The fix restricts persisted fields to an allow-list.
Affected products
- MISP Project MISP < 2.5.48
Timeline
- 2026-09-30: disclosed
- 2026-09-25: patched