GHSA-3gjw-f78c-vvpw Panic on a `DataRow` with fewer fields than columns allows denial of service
A malicious server can cause a denial of service by sending malformed data rows, crashing the Rust database client application.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is GHSA-3gjw-f78c-vvpw?
GHSA-3gjw-f78c-vvpw is a denial of service vulnerability in tokio-postgres, published on 12 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A malicious or compromised server can send a row containing fewer fields than
its row description declares columns. Reading one of the missing columns then
panics with an out-of-bounds index, aborting the calling task. This affects even
the otherwise non-panicking try_get, and both Row and SimpleQueryRow.
Applications that connect only to a trusted database are not exposed; the risk applies to clients that may connect to untrusted or user-supplied servers, or whose connection can be intercepted by a man-in-the-middle.
Which versions are affected by GHSA-3gjw-f78c-vvpw?
3 open source packages ship an affected version, including tokio-postgres.
| Package | Affected | Fixed in |
|---|---|---|
tokio-postgres crates.io | From 0.4.0 | 0.7.18 |
tokio-postgres crates.io | From 0.4.0 | 0.7.18 |
tokio-postgres crates.io | From 0.4.0 | 0.7.18 |
How do I fix GHSA-3gjw-f78c-vvpw?
Upgrade tokio-postgres to 0.7.18 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GHSA-3gjw-f78c-vvpw being exploited?
There is no known exploitation of GHSA-3gjw-f78c-vvpw in the wild and no public exploit code.
Sources
Also known as RUSTSEC-2026-0178.