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CVE-2026-22250VulnerabilityPublished

CVE-2026-22250: WeblateOrg wlc · Improper Certificate Validation

Affects WeblateOrg wlcSource CVE Database V5

0

Not known to be exploited · CVSS 2.5 Low : upgrade to 1.17.0 when convenient.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
2.5Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.17.0
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Upgrade wlc and weblateorg/wlc to 1.17.0.

Affected software

ProductAffectedFixed in
WeblateOrgwlcAffected
  • <1.17.0
Fixed in
  • 1.17.0
GitHubweblateorg/wlcpkg:github/weblateorg/wlcOther threatsAffected
  • <1.17.0
Fixed in
  • 1.17.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

The definitive mitigation is to upgrade the wlc client to version 1.17.0 or later, where proper SSL certificate validation is enforced for all URLs. Organizations should audit their deployment of wlc to identify any instances running vulnerable versions. Additionally, enforcing network segmentation and strict access controls can reduce the risk of MitM attacks within internal networks. Using VPNs or encrypted tunnels for remote access to Weblate servers can further protect API communications. Monitoring for unusual network activity or unexpected certificate warnings can help detect attempted exploitation. Finally, educating users about the risks of interacting with untrusted URLs or networks when using wlc can reduce the chance of successful attacks requiring user interaction.

Description

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.

References

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