CVE-2026-48484
What it is
pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev101, the API `rpc` function in `api_blueprint.py` handles `multipart/form-data` uploads by reading the whole content of the uploaded file into memory with `file.read()`. This occurs before the data is sent to the underlying function. Since there is no size limit set at this point, a large file upload can exhaust the server's available memory which led to process termination. Version 0.5.0b3.dev101 contains a patch.
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Exploit probability
- 0.4% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Deferred
Attack profile CVSS 3.1 · 6.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Fix and advisories
- https://github.com/pyload/pyload/commit/461cd66f30fa9e96453fb4d8c5c47467e452363c
- https://github.com/pyload/pyload/security/advisories/GHSA-vq8p-m3wm-gv5f
- https://github.com/pyload/pyload/security/advisories/GHSA-vq8p-m3wm-gv5f
References
- https://github.com/pyload/pyload/blob/8e447958b8a66c5899775e725a8b90bce6643004/src/pyload/webui/app/blueprints/api_blueprint.py#L73
- https://github.com/pyload/pyload/commit/461cd66f30fa9e96453fb4d8c5c47467e452363c
- https://github.com/pyload/pyload/security/advisories/GHSA-vq8p-m3wm-gv5f
- https://github.com/pyload/pyload/security/advisories/GHSA-vq8p-m3wm-gv5f