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VulnerabilityPublished Updated

CVE-2026-41654: WeblateOrg weblate · Improper Input Validation

Affects WeblateOrg weblateSource CVE Database V5

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Not known to be exploited · CVSS 5.3 Medium : upgrade to 5.17.1 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 5.17.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: 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 30 Oct 2026.

What to do

Upgrade WeblateOrg weblate to 5.17.1.

Affected software

ProductAffectedFixed in
WeblateOrgweblateAffected
  • <5.17.1
Fixed in
  • 5.17.1
PyPIweblatepkg:pypi/weblateOther threatsAffected
  • <5.17.1
Fixed in
  • 5.17.1

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

AI-suggested

Upgrade Weblate to version 5.17.1 or later, where this vulnerability has been patched. No other mitigation is indicated or required according to the available data.

Description

CVE-2026-41654 is a medium severity vulnerability in Weblate versions prior to 5.17.1. It allows an authenticated user with project.add permission to import a crafted project backup ZIP containing a component JSON with a malicious repository URL. This URL can point to private network addresses or use disallowed schemes, bypassing input validation due to the use of bulk_create which skips Django's full_clean validation. The malicious URL is then written directly into the . git/config file. This issue has been fixed in Weblate version 5.17.

References

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