tokio-postgres: Panic on a `DataRow` with fewer fields than columns allows denial of serviceGHSA-3gjw-f78c-vvpw
Fix: rust-postgres/rust-postgres@7a00ffaGHSA-3gjw-f78c-vvpw is a security vulnerability in tokio-postgres. A fix is available for tokio-postgres — see the affected versions and patch details below.
Real-World Exposure
tokio-postgresReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects crates.io packages — download data is not available via public APIs for these ecosystems.
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.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🦀crates.io | tokio-postgres | ≥ 0.4.0&&< 0.7.18 | 0.7.18cargo update -p tokio-postgres --precise 0.7.18 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for tokio-postgres, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update tokio-postgres to 0.7.18 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-3gjw-f78c-vvpw is resolved across your whole dependency graph.
Workarounds
Constrain what reaches the vulnerable code: limit the size and shape of untrusted input, isolate the affected component in a sandboxed or least-privileged process, and enable the platform's memory-safety mitigations (ASLR, stack protector, hardened allocator) so an out-of-bounds access is more likely to fail closed than to be exploitable.
Frequently Asked Questions
Is GHSA-3gjw-f78c-vvpw in your dependencies?
Find it across crates.io, including transitive dependencies.