GHSA-3gjw-f78c-vvpw: tokio-postgres Denial of Service Vulnerability

MODERATE
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CWE-125
Published
Advisory Summary

GHSA-3gjw-f78c-vvpw is a MODERATE denial of service vulnerability (CWE-125: Out-of-bounds Read) affecting tokio-postgres libraries in the crates.io ecosystem. The issue involves panic on a `datarow` with fewer fields than columns allows denial of service. Remediation is available by upgrading affected packages to version 0.7.18.

GHSA-3gjw-f78c-vvpw at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-3gjw-f78c-vvpw
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-125: Out-of-bounds Read
Affected Product tokio-postgres
Package Ecosystem crates.io
Published Date
Last Updated

How to Fix GHSA-3gjw-f78c-vvpw

To remediate this vulnerability, upgrade all affected tokio-postgres dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

tokio-postgres fixed: 0.7.18 
Upgrade tokio-postgres to 0.7.18
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for tokio-postgres

How to Check if You Are Affected

To determine whether your application is affected by GHSA-3gjw-f78c-vvpw, inspect your project dependencies for tokio-postgres:

inspect dependencies for tokio-postgres

Analyze the terminal output to locate any version of tokio-postgres in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.7.18), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-125: Out-of-bounds Read, where the product reads data past the end, or before the beginning, of the intended buffer. In tokio-postgres, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

GHSA-3gjw-f78c-vvpw Affected tokio-postgres Versions

1 component(s)
Fixed Versions:
0.7.18
Product / Package Ecosystem Affected Versions Fixed Version
tokio-postgres
 crates.io
≥ 0.4.0
< 0.7.18
0.7.18

References

Security Fix Commit FIX COMMIT
https://github.com/rust-postgres/rust-postgres/commit/7a00ffa9ad4d951ec0a4564b52f1780fa9d353c1
tokio-postgres Source Repository REPOSITORY
https://github.com/rust-postgres/rust-postgres
tokio-postgres Release RELEASE
https://github.com/rust-postgres/rust-postgres/releases/tag/tokio-postgres-v0.7.18
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2026-0178.html

Frequently Asked Questions

What is GHSA-3gjw-f78c-vvpw?
GHSA-3gjw-f78c-vvpw is a security vulnerability in tokio-postgres involving Panic on a `DataRow` with fewer fields than columns allows denial of service under CWE-125: Out-of-bounds Read.
Which tokio-postgres versions are affected?
Affected versions include releases prior to 0.7.18 across affected packages: tokio-postgres.
What version fixes GHSA-3gjw-f78c-vvpw?
Upgrading to 0.7.18 (or the latest patched release for your respective branch) resolves the vulnerability.
Is tokio-postgres affected?
Yes, tokio-postgres is affected in releases prior to 0.7.18. Upgrade your dependency to 0.7.18 or later.
What CWE is associated with GHSA-3gjw-f78c-vvpw?
GHSA-3gjw-f78c-vvpw is classified under CWE-125: Out-of-bounds Read (The product reads data past the end, or before the beginning, of the intended buffer.).
How can I check crates.io dependencies for GHSA-3gjw-f78c-vvpw?
Run the dependency tree command: 'inspect dependencies for tokio-postgres'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-3gjw-f78c-vvpw",
  "modified" : "2026-08-24T19:49:17Z",
  "published" : "2026-08-24T19:49:17Z",
  "aliases" : [ ],
  "summary" : "tokio-postgres: Panic on a `DataRow` with fewer fields than columns allows denial of service",
  "details" : "A malicious or compromised server can send a row containing fewer fields than\nits row description declares columns. Reading one of the missing columns then\npanics with an out-of-bounds index, aborting the calling task. This affects even\nthe otherwise non-panicking `try_get`, and both `Row` and `SimpleQueryRow`.\n\nApplications that connect only to a trusted database are not exposed; the risk\napplies to clients that may connect to untrusted or user-supplied servers, or\nwhose connection can be intercepted by a man-in-the-middle.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "tokio-postgres"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.4.0"
      }, {
        "fixed" : "0.7.18"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/rust-postgres/rust-postgres/commit/7a00ffa9ad4d951ec0a4564b52f1780fa9d353c1"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/rust-postgres/rust-postgres"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rust-postgres/rust-postgres/releases/tag/tokio-postgres-v0.7.18"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2026-0178.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-24T19:49:17Z",
    "nvd_published_at" : null
  }
}