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CVE-2026-42315

Pyload-ng path traversal

8.1 HIGHPublic exploitEPSS 0.50%
  1. Published11 May 2026

Description

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, when passing a folder name in the set_package_data() API function call inside the data object with key "_folder", there is no sanitization at all, allowing a user with Perms.MODIFY to specify arbitrary directories as download locations for a package. This vulnerability is fixed in 0.5.0b3.dev100.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected products

Pyload-ng< 0.5.0b3.dev100

Remediation

Fixed in
Pyload-ng≥ 0.5.0b3.dev100

References

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Frequently asked

Is CVE-2026-42315 being actively exploited?

CVE-2026-42315 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.50%.

How severe is CVE-2026-42315?

CVE-2026-42315 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 0.50% probability of exploitation.

Which products are affected by CVE-2026-42315?

Affected products include Pyload-ng.

How do I fix CVE-2026-42315?

Upgrade affected software to a fixed version, for example Pyload-ng 0.5.0b3.dev100 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-42315 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.