VDB-340495 · CVE-2026-22250 · EUVD-2026-1920

WeblateOrg wlc up to 1.16.x REST API certificate validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.9	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in WeblateOrg wlc up to 1.16.x. Affected by this issue is some unknown functionality of the component REST API. This manipulation causes certificate validation. This vulnerability is registered as CVE-2026-22250. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in WeblateOrg wlc up to 1.16.x. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component REST API. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect integrity. The summary by CVE is:

wlc is a Weblate command-line client using Weblate's REST API. Prior to 1.17.0, the SSL verification would be skipped for some crafted URLs. This vulnerability is fixed in 1.17.0.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-22250 since 01/07/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 282617 (Linux Distros Unpatched Vulnerability : CVE-2026-22250), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.17.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (282617) and EUVD (EUVD-2026-1920). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

WeblateOrg

Name

Version

Website

Product: https://github.com/WeblateOrg/wlc/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.9
VulDB Meta Temp Score: 3.9

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CNA Base Score: 2.5
CNA Vector (GitHub_M): 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 282617
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-22250

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: wlc 1.17.0

Timelineinfo

01/07/2026 CVE reserved
01/12/2026 +5 days Advisory disclosed
01/12/2026 +0 days VulDB entry created
01/28/2026 +16 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-22250 (🔒)
GCVE (CVE): GCVE-0-2026-22250
GCVE (VulDB): GCVE-100-340495
EUVD: 🔒

Entryinfo

Created: 01/12/2026 19:10
Updated: 01/28/2026 01:01
Changes: 01/12/2026 19:10 (64), 01/13/2026 22:25 (1), 01/14/2026 02:04 (2), 01/28/2026 01:01 (11)
Complete: 🔍
Cache ID: 216::103