Weblate exposes personal IP address via e-mail
Priority LOW 11CWE-359Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-359.
Summary
Weblate is a web based localization tool. Prior to version 5.12, the audit log notifications included the full IP address of the acting user. This could be obtained by third-party servers such as SMTP relays, or spam filters. This issue has been patched in version 5.12.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00321 25th percentileScored 2026-11-07
Fix Fixed weblate (WeblateOrg): 5.12weblate (PyPI): 5.12
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| WeblateOrg | weblate | before 5.12 | 5.12 | Patch available | CNA |
| — | weblate (PyPI) | before 5.12 | 5.12 | Patch available | GHSA-4qqf-9m5c-w2c5 |
- weblate VendorWeblateOrg Affected before 5.12 Fixed in 5.12 Patch available CNA
- weblate (PyPI) Vendor— Affected before 5.12 Fixed in 5.12 Patch available GHSA-4qqf-9m5c-w2c5
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:weblate:weblate:*:*:*:*:*:*:*:* | before 5.12 | Vulnerable | WeblateOrg |
- cpe:2.3:a:weblate:weblate:*:*:*:*:*:*:*:* Versions before 5.12 Vulnerable ·WeblateOrg
Remediation
- Fix · CNA weblate (WeblateOrg) Fixed in 5.12
- Fix · GHSA-4qqf-9m5c-w2c5 weblate (PyPI) Fixed in 5.12 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-49134
- 2026-10-03 Alias added: GHSA-4qqf-9m5c-w2c5
References
Advisory 2
More WeblateOrg Weblate vulnerabilities
- TI-2025-23145 Weblate VCS credentials included in URL parameters are potentially logged and saved into browser history as plaintext CVSS 3.1HIGH 7.5
- TI-2025-38033 Weblate integration with Anubis can lead to Open Redirect via redir parameter CVSS 4.0LOW 2.1
- TI-2022-07893 Remote code execution (RCE) in Weblate CVSS 3.1HIGH 8.8
- TI-2025-41967 Weblate has git config file overwrite vulnerability that leads to remote code execution CVSS 3.1CRITICAL 9.1
- TI-2026-26679 Weblate: Privilege escalation in the user API endpoint CVSS 3.1HIGH 8.8
- TI-2026-19444 Weblate has an argument injection in management console CVSS 3.1CRITICAL 9.1
Sources
- CVE-2025-49134 · CVE Program
- CVE-2025-49134 · NVD
- FIRST EPSS
- GHSA-4qqf-9m5c-w2c5 · GitHub Advisory Database · CC BY 4.0
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