Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
djust versions before 1.0.7 do not bind SSE sessions to the authenticated user; the session_id is chosen by the client and is the only check. An attacker who knows or obtains a victim's session_id can connect to the message endpoint and run event handlers with the victim's identity and state. Upgrade to djust 1.0.7, which binds each SSE session to its owner and rejects cross-user access. The source's only listed workaround is to disable the SSE transport.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 7.4 | High | 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0039, the 33rd percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:09 UTC First seen by agentprime
- 31 Oct 2026, 14:09 UTC Confirmed by OSV