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CVE-2026-41133

Pyload vulnerability

8.8 HIGHPublic exploitEPSS 0.47%
  1. Published21 Apr 2026

Description

pyLoad is a free and open-source download manager written in Python. Versions up to and including 0.5.0b3.dev97 cache `role` and `permission` in the session at login and continues to authorize requests using these cached values, even after an admin changes the user's role/permissions in the database. As a result, an already logged-in user can keep old (revoked) privileges until logout/session expiry, enabling continued privileged actions. This is a core authorization/session-consistency issue and is not resolved by toggling an optional security feature. Commit e95804fb0d06cbb07d2ba380fc494d9ff89b68c1 contains a fix for the issue.

CVSS 3.1 breakdown

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

Affected products

Pyload< 2026-04-13

Remediation

Fixed in
Pyload≥ 2026-04-13

References

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Frequently asked

Is CVE-2026-41133 being actively exploited?

CVE-2026-41133 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.47%.

How severe is CVE-2026-41133?

CVE-2026-41133 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.47% probability of exploitation.

Which products are affected by CVE-2026-41133?

Affected products include Pyload.

How do I fix CVE-2026-41133?

Upgrade affected software to a fixed version, for example Pyload 2026-04-13 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-41133 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.