Weblate: SSRF via the webhook add-on using unprotected fetch_url()
Impact
The webhook add-on did not utilize existing SSRF protection.
Patches
Workarounds
Disabling the add-on would avoid misusing this.
References
Thanks to @Lihfdgjr for reporting this via GitHub.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | weblate | < 5.17 | 5.17 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N- Weakness (CWE)
CWE-918- Platform
- Python (PyPI)
- Package
weblate- Disclosed
- 15.04.2026
- Updated
- 11.10.2026 12:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-156 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-f8hv-g549-hwg2 - CC BY 4.0
Vulnerability history: weblate
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 36
- First → latest
- 03.2017 08.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 6
- Medium 22
- Low 7
Disclosures per year
- 2017: 1
- 2018: 0
- 2019: 0
- 2020: 0
- 2021: 0
- 2022: 1
- 2023: 0
- 2024: 1
- 2025: 12
- 2026: 21
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Weblate: SSRF via the webhook add-on using unprotected fetch_url() this entry
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