Prefect SSRF Bypass via DNS Rebinding in validate_restricted_url
A vulnerability has been found in PrefectHQ prefect up to 3.6.28.dev1. Affected by this vulnerability is the function validate_restricted_url of the component Webhook/Notification. The manipulation leads to time-of-check time-of-use. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.6.28.dev2 addresses this issue. The identifier of the patch is 7c70ac54a5e101431d83b9f2681ec88d5e0021ed. Upgrading the affected component is advised.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Python (PyPI) | prefect | < 3.6.28.dev2 | 3.6.28.dev2 |
Referencias
- https://nvd.nist.gov/vuln/detail/CVE-2026-7724
- https://github.com/PrefectHQ/prefect/pull/21591
- https://github.com/PrefectHQ/prefect/commit/7c70ac54a5e101431d83b9f2681ec88d5e0021ed
- https://gist.github.com/nedlir/fa99777e8989414585d08c3625bf044a
- https://github.com/PrefectHQ/prefect
- https://github.com/PrefectHQ/prefect/releases/tag/3.6.28.dev2
- https://linear.app/prefect/issue/OSS-7874/fix-dns-rebinding-toctou-bypass-in-validate-restricted-url
- https://vuldb.com/submit/807303
- https://vuldb.com/vuln/360900
- https://vuldb.com/vuln/360900/cti
- https://pypi.org/project/prefect
- https://github.com/advisories/GHSA-p3pq-hxmr-vqqr
- Vector CVSS
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L- Debilidad (CWE)
CWE-362- Plataforma
- Python (PyPI)
- Paquete
prefect- Publicada
- 04.05.2026
- Actualizado
- 11.10.2026 15:17
Fuentes y licencias
OSV / GitHub Advisory Database - PYSEC-2026-2959 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-p3pq-hxmr-vqqr - CC BY 4.0
Historial de vulnerabilidades: prefect
Todas las vulnerabilidades publicadas de este paquete (Python (PyPI)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 8
- Primera → última
- 11.2023 06.2026
- Sin corrección
- 1
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 4
- Media 2
- Baja 2
Divulgaciones por año
- 2023: 1
- 2024: 0
- 2025: 1
- 2026: 6
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Prefect SSRF Bypass via DNS Rebinding in validate_restricted_url esta entrada
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