CVE-2026-55658 Gardens v2: StreamingEscrow buffer drains to the proposal beneficiary on cancel via the permissionless claim()
Attackers can steal pool funds by submitting a streaming proposal and canceling it, causing the escrow buffer to be sent to the beneficiary instead of the pool.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-55658?
CVE-2026-55658 is a high-severity vulnerability in 1Hive gardens-v2, published on 3 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Gardens v2 is a modular governance framework that enables communities to create and manage multiple governance pools with customizable parameters and voting mechanisms. In 3e595f3 and prior, when a streaming proposal is funded, the cluster of streaming contracts moves real pool funds into the proposal's StreamingEscrow to back the Superfluid constant flow agreement (the CFA deposit, plus a 0.5 percent margin). cancelProposal then zeroes the escrow's GDA member units but never reclaims that parked balance, and the permissionless claim() forwards the escrow's entire balance, including the pool funded buffer, to the beneficiary. The beneficiary is chosen by the proposal submitter and defaults to the submitter. The only path that returns escrow funds to the pool is drainToStrategy, which is onlyStrategy and is reached solely from the dispute reject ruling, never from cancel or natural completion. At time of publication, there are no publicly known patches.
Weakness: CWE-862
Which versions are affected by CVE-2026-55658?
How do I fix CVE-2026-55658?
No fix has been published for CVE-2026-55658 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-55658 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55658 exists.