Vulnerability · Published May 11, 2026 · Assigned by GitHub_M

CVE-2026-42314pyLoad: Path Traversal via Package Folder Name

Medium 6.5

In plain English

A medium-severity path traversal in pyload from pyload. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.3%top 72.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, package folder names are sanitized using insufficient string replacement. The pattern ....// becomes .._ after replacement (partial removal), leaving .. which can be exploited when the path is later resolved by the OS. This vulnerability is fixed in 0.5.0b3.dev100.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	pyload-ng	0.5.0b3.dev100	GHSA-97r3-5w84-r4q8
PyPI	pyload-ng	0.5.0b3.dev100	PYSEC-2026-128

Affected products (as reported)

Vendor	Product	Versions
pyload	pyload	< 0.5.0b3.dev100

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

References

https://github.com/pyload/pyload/security/advisories/GHSA-97r3-5w84-r4q8 x_refsource_CONFIRM