CVE-2026-61591 djust: Unsigned client state snapshot is restored as trusted view state (privilege escalation / state injection)
Attackers can escalate privileges or tamper with business state by injecting arbitrary view attributes via unsigned client state snapshots in djust.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-61591?
CVE-2026-61591 is a high-severity vulnerability in djust-org djust, published on 16 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to version 1.0.7, for views that opt into state snapshots, the snapshot `state_json` embedded in the client page was restored on reconnect as trusted view state with no integrity check. A client could edit the unsigned `state_json` in their page and return it in the reconnect mount frame to inject arbitrary view attributes — e.g. flip `is_admin` to `True`, or change `account_id` / `balance` — escalating privilege or tampering with business state held in public view attributes (the normal djust pattern). This issue is fixed in djust 1.0.7. State snapshots are signed; unsigned or forged snapshots are rejected on the back-navigation restore path. As a workaround, do not enable state snapshots; do not hold authorization/ownership state in public view attributes.
Which versions are affected by CVE-2026-61591?
3 open source packages ship an affected version, including djust.
| Package | Affected | Fixed in |
|---|---|---|
djust PyPI | All versions | 1.0.7 |
djust PyPI | All versions | 1.0.7 |
djust PyPI | All versions | 1.0.7 |
How do I fix CVE-2026-61591?
Upgrade djust to 1.0.7 or later.
Is CVE-2026-61591 being exploited?
There is no known exploitation of CVE-2026-61591 in the wild and no public exploit code.
Sources
Also known as GHSA-c67v-vqrp-m5wj, PYSEC-2026-4040.