GHSA-522r-9946-fw43: Duplicate Advisory CIRCL-Fourq: Missing And Wrong Validation Vulnerability

LOW
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CVSS 3.7
CWE-347
Published
Advisory Summary

GHSA-522r-9946-fw43 is a LOW (CVSS 3.7) circl-fourq: missing and wrong validation vulnerability (CWE-347: Improper Verification of Cryptographic Signature) affecting Duplicate Advisory libraries in the Go ecosystem. The issue involves circl-fourq: missing and wrong validation can lead to incorrect results. Remediation is available by upgrading affected packages to version 1.6.1.

GHSA-522r-9946-fw43 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-522r-9946-fw43
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-347: Improper Verification of Cryptographic Signature
Affected Product Duplicate Advisory
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 3.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix GHSA-522r-9946-fw43

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.

github.com/cloudflare/circl fixed: 1.6.1 
Upgrade github.com/cloudflare/circl to 1.6.1
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 github.com/cloudflare/circl

How to Check if You Are Affected

To determine whether your application is affected by GHSA-522r-9946-fw43, inspect your project dependencies for Duplicate Advisory:

inspect dependencies for github.com/cloudflare/circl

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 1.6.1), 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-347: Improper Verification of Cryptographic Signature, where the product does not verify, or incorrectly verifies, the cryptographic signature for data. 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-2x5j-vhc8-9cwm. This link is maintained to preserve external references. ## Original Description A flaw was found in CIRCL's implementation of the FourQ elliptic curve. This vulnerability allows an attacker to compromise session security via low-order point injection and incorrect point validation during Diffie-Hellman key exchange.

GHSA-522r-9946-fw43 Affected Duplicate Advisory Versions

1 component(s)
Fixed Versions:
1.6.1
Product / Package Ecosystem Affected Versions Fixed Version
github.com/cloudflare/circl
golang/github.com/cloudflare/circl
Go
< 1.6.1
1.6.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/cloudflare/circl/security/advisories/GHSA-2x5j-vhc8-9cwm
NVD — GHSA-522r-9946-fw43 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-8556
Duplicate Advisory Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2025-8556
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2371624
Duplicate Advisory Source Repository REPOSITORY
https://github.com/cloudflare/circl
Duplicate Advisory Source Repository REPOSITORY
https://github.com/cloudflare/circl/tree/v1.6.1

Frequently Asked Questions

What is GHSA-522r-9946-fw43?
GHSA-522r-9946-fw43 is a security vulnerability in Duplicate Advisory involving CIRCL-Fourq: Missing and wrong validation can lead to incorrect results under CWE-347: Improper Verification of Cryptographic Signature.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 1.6.1 across affected packages: github.com/cloudflare/circl.
What version fixes GHSA-522r-9946-fw43?
Upgrading to 1.6.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/cloudflare/circl affected?
Yes, github.com/cloudflare/circl is affected in releases prior to 1.6.1. Upgrade your dependency to 1.6.1 or later.
What is the CVSS score of GHSA-522r-9946-fw43?
GHSA-522r-9946-fw43 has a CVSS v3.1 base score of 3.7 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with GHSA-522r-9946-fw43?
GHSA-522r-9946-fw43 is classified under CWE-347: Improper Verification of Cryptographic Signature (The product does not verify, or incorrectly verifies, the cryptographic signature for data.).
How can I check Go dependencies for GHSA-522r-9946-fw43?
Run the dependency tree command: 'inspect dependencies for github.com/cloudflare/circl'. 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-522r-9946-fw43",
  "modified" : "2025-08-06T17:39:16Z",
  "published" : "2025-08-06T09:30:37Z",
  "withdrawn" : "2025-08-06T17:39:16Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: CIRCL-Fourq: Missing and wrong validation can lead to incorrect results",
  "details" : "## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-2x5j-vhc8-9cwm. This link is maintained to preserve external references.\n\n## Original Description\n\nA flaw was found in CIRCL's implementation of the FourQ elliptic curve. This vulnerability allows an attacker to compromise session security via low-order point injection and incorrect point validation during Diffie-Hellman key exchange.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/cloudflare/circl"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.6.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/cloudflare/circl/security/advisories/GHSA-2x5j-vhc8-9cwm"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-8556"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2025-8556"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2371624"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/cloudflare/circl"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cloudflare/circl/tree/v1.6.1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-347" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-08-06T17:39:16Z",
    "nvd_published_at" : "2025-08-06T09:15:28Z"
  }
}