CVE-2026-22251: Wlc Weblate Wlc Has Insecure API Vulnerability

MODERATE
Advisory Identifier: GHSA-9rp8-h4g8-8766
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CVSS 5.3
CWE-922 CWE-200
Published
Advisory Summary

CVE-2026-22251 is a MODERATE (CVSS 5.3) weblate wlc has insecure api vulnerability (CWE-922: Insecure Storage of Sensitive Information) affecting Wlc libraries in the PyPI ecosystem. The issue involves weblate wlc has insecure api key configuration. Remediation is available by upgrading affected packages to version 1.17.0.

CVE-2026-22251 at a Glance

CVE Identifier CVE-2026-22251
GHSA Identifier GHSA-9rp8-h4g8-8766
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-922: Insecure Storage of Sensitive Information
Affected Product Wlc
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 5.3

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

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

How to Fix CVE-2026-22251

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

wlc fixed: 1.17.0 
pip install wlc>=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: 

pip show wlc

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-22251, inspect your installed packages using pip:

pip show wlc

Analyze the terminal output to locate any version of Wlc 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: The pip show wlc command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-922: Insecure Storage of Sensitive Information, where the product stores sensitive information without properly limiting read or write access by unauthorized actors. In Wlc, 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

### Impact Historically, wlc supported providing unscoped API keys in the setting. This practice was discouraged for years, but the code was never removed. This might cause the API key to be used against different server. ### Patches * https://github.com/WeblateOrg/wlc/pull/1098 ### Workarounds Remove unscoped `key` from wlc configuration. Only use URL-scoped keys in the `[keys]` sections. ### References This issue was reported to us by [wh1zee](https://hackerone.com/wh1zee) via HackerOne.

CVE-2026-22251 Affected Wlc Versions

1 component(s)
Fixed Versions:
1.17.0
Product / Package Ecosystem Affected Versions Fixed Version
wlc
pypi/wlc
PyPI
< 1.17.0
1.17.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/WeblateOrg/wlc/security/advisories/GHSA-9rp8-h4g8-8766
NVD — CVE-2026-22251 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-22251
Wlc Source Repository REPOSITORY
https://github.com/WeblateOrg/wlc/pull/1098
Security Fix Commit FIX COMMIT
https://github.com/WeblateOrg/wlc/commit/aafdb507a9e66574ade1f68c50c4fe75dbe80797
Wlc Source Repository REPOSITORY
https://github.com/WeblateOrg/wlc

Frequently Asked Questions

What is CVE-2026-22251?
CVE-2026-22251 is a security vulnerability in Wlc involving Weblate wlc has insecure API key configuration under CWE-922: Insecure Storage of Sensitive Information.
Which Wlc versions are affected?
Affected versions include releases prior to 1.17.0 across affected packages: wlc.
What version fixes CVE-2026-22251?
Upgrading to 1.17.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is wlc affected?
Yes, wlc is affected in releases prior to 1.17.0. Upgrade your dependency to 1.17.0 or later.
What is the CVSS score of CVE-2026-22251?
CVE-2026-22251 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N.
What CWE is associated with CVE-2026-22251?
CVE-2026-22251 is classified under CWE-922: Insecure Storage of Sensitive Information (The product stores sensitive information without properly limiting read or write access by unauthorized actors.).
How can I check PyPI dependencies for CVE-2026-22251?
Run the dependency tree command: 'pip show wlc'. 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-9rp8-h4g8-8766",
  "modified" : "2026-01-12T20:07:26Z",
  "published" : "2026-01-12T18:07:03Z",
  "aliases" : [ "CVE-2026-22251" ],
  "summary" : "Weblate wlc has insecure API key configuration",
  "details" : "### Impact\nHistorically, wlc supported providing unscoped API keys in the setting. This practice was discouraged for years, but the code was never removed. This might cause the API key to be used against different server.\n\n### Patches\n* https://github.com/WeblateOrg/wlc/pull/1098\n\n### Workarounds\nRemove unscoped `key` from wlc configuration. Only use URL-scoped keys in the `[keys]` sections.\n\n### References\nThis issue was reported to us by [wh1zee](https://hackerone.com/wh1zee) via HackerOne.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "wlc"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.17.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/WeblateOrg/wlc/security/advisories/GHSA-9rp8-h4g8-8766"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-22251"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/WeblateOrg/wlc/pull/1098"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/WeblateOrg/wlc/commit/aafdb507a9e66574ade1f68c50c4fe75dbe80797"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/WeblateOrg/wlc"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-922" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-01-12T18:07:03Z",
    "nvd_published_at" : "2026-01-12T18:15:49Z"
  }
}