GHSA-w277-wpqf-rcfv: Duplicate Advisory Svix Vulnerable To Improper Comparison Vulnerability

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Advisory Summary

GHSA-w277-wpqf-rcfv is a MODERATE svix vulnerable to improper comparison vulnerability (General Security Weakness) affecting Duplicate Advisory libraries in the crates.io ecosystem. The issue involves svix vulnerable to improper comparison of different-length signatures. Remediation is available by upgrading affected packages to version 1.17.0.

GHSA-w277-wpqf-rcfv at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-w277-wpqf-rcfv
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Duplicate Advisory
Package Ecosystem crates.io
Published Date
Last Updated

How to Fix GHSA-w277-wpqf-rcfv

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

svix fixed: 1.17.0 
Upgrade svix to 1.17.0
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 svix

How to Check if You Are Affected

To determine whether your application is affected by GHSA-w277-wpqf-rcfv, inspect your project dependencies for Duplicate Advisory:

inspect dependencies for svix

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.17.0), 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 General Security Weakness. In Duplicate Advisory, 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

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-747x-5m58-mq97. This link is maintained to preserve external references. ## Original Description The `Webhook::verify` function incorrectly compared signatures of different lengths - the two signatures would only be compared up to the length of the shorter signature. This allowed an attacker to pass in `v1,` as the signature, which would always pass verification.

GHSA-w277-wpqf-rcfv Affected Duplicate Advisory Versions

1 component(s)
Fixed Versions:
1.17.0
Product / Package Ecosystem Affected Versions Fixed Version
svix
 crates.io
< 1.17.0
1.17.0

References

Duplicate Advisory Source Repository REPOSITORY
https://github.com/svix/svix-webhooks/pull/1190
Security Fix Commit FIX COMMIT
https://github.com/svix/svix-webhooks/commit/958821bd3b956d1436af65f70a0964d4ffb7daf6
Duplicate Advisory Source Repository REPOSITORY
https://github.com/svix/svix-webhooks
rustsec.org/advisories/rustsec-... WEB
https://rustsec.org/advisories/RUSTSEC-2024-0010.html

Frequently Asked Questions

What is GHSA-w277-wpqf-rcfv?
GHSA-w277-wpqf-rcfv is a security vulnerability in Duplicate Advisory involving Svix vulnerable to improper comparison of different-length signatures under General Security Weakness.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 1.17.0 across affected packages: svix.
What version fixes GHSA-w277-wpqf-rcfv?
Upgrading to 1.17.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is svix affected?
Yes, svix is affected in releases prior to 1.17.0. Upgrade your dependency to 1.17.0 or later.
What CWE is associated with GHSA-w277-wpqf-rcfv?
GHSA-w277-wpqf-rcfv is classified under General Security Weakness.
How can I check crates.io dependencies for GHSA-w277-wpqf-rcfv?
Run the dependency tree command: 'inspect dependencies for svix'. 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-w277-wpqf-rcfv",
  "modified" : "2026-01-23T22:35:18Z",
  "published" : "2024-02-06T20:30:14Z",
  "withdrawn" : "2026-01-23T22:35:18Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: Svix vulnerable to improper comparison of different-length signatures",
  "details" : "## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-747x-5m58-mq97. This link is maintained to preserve external references.\n\n## Original Description\nThe `Webhook::verify` function incorrectly compared signatures of different lengths - the two signatures would only be compared up to the length of the shorter signature. This allowed an attacker to pass in `v1,` as the signature, which would always pass verification.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "svix"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.17.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/svix/svix-webhooks/pull/1190"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/svix/svix-webhooks/commit/958821bd3b956d1436af65f70a0964d4ffb7daf6"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/svix/svix-webhooks"
  }, {
    "type" : "WEB",
    "url" : "https://rustsec.org/advisories/RUSTSEC-2024-0010.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-02-06T20:30:14Z",
    "nvd_published_at" : null
  }
}