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VulnerabilityPublished

CVE-2026-34244: WeblateOrg weblate · Information Exposure

Affects WeblateOrg weblateSource CVE Database V5

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Not known to be exploited · CVSS 5.0 Medium : upgrade to 517 when convenient.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.1 base score
5.0Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 16% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 517, 5.17
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Apr 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 29 Oct 2026.

What to do

Upgrade weblate to 517; weblate to 5.17.

Affected software

ProductAffectedFixed in
WeblateOrgweblateAffected
  • <517
Fixed in
  • 517
PyPIweblatepkg:pypi/weblateOther threatsAffected
  • <5.17
Fixed in
  • 5.17

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 or later, where this vulnerability is fixed. If immediate upgrade is not feasible, restrict the machine translation services available by configuring the WEBLATE_MACHINERY setting to limit URLs that can be used, thereby reducing the SSRF attack surface.

Description

Weblate is a web based localization tool. In versions prior to 5.17, a user with the project.edit permission (granted by the per-project "Administration" role) can configure machine translation service URLs pointing to arbitrary internal network addresses. During configuration validation, Weblate makes an HTTP request to the attacker-controlled URL and reflects up to 200 characters of the response body back to the user in an error message. This constitutes a Server-Side Request Forgery (SSRF) with partial response read. This issue has been fixed in version 5.17. If developers are unable to immediately upgrade, they can limit available machinery services via WEBLATE_MACHINERY setting.

References

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