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CVE-2026-29778

pyLoad: Arbitrary File Write via Path Traversal in edit_package()

Published: Mar 7, 2026Updated: Mar 11, 2026 Sources: CVE List NVD GHSACWE-23
NVD MITRE
7.1CVSSHIGH
EPSS Score
0.5%
Top 60.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

pyLoad is a free and open-source download manager written in Python. From version 0.5.0b3.dev13 to 0.5.0b3.dev96, the edit_package() function implements insufficient sanitization for the pack_folder parameter. The current protection relies on a single-pass string replacement of "../", which can be bypassed using crafted recursive traversal sequences. This issue has been patched in version 0.5.0b3.dev97.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:HA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-23

Affected Products

pyloadpyload
On-prem
Consumer Software / file-utility
pyload-ngpyload-ng project
On-prem
Consumer Software / file-utility
pyload-ngPyPIOSS Libraries
pyloadoss-projectConsumer Softwareaka pyload/pyload
pyload-ng projectoss-projectConsumer Softwareaka pyload-ng
pypipackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Discovery
View detailed technique mapping

References

https://github.com/pyload/pyload/security/advisories/GHSA-6px9-j4qr-xfjw
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-29778
nvd.nist.gov
https://github.com/pyload/pyload
github.com
and 1 more references View all →

Timeline

Published
Mar 7, 2026
Last Updated
Mar 11, 2026

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