CVE-2026-41133
CVE-2026-41133 is a high-severity vulnerability in Pyload with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-613.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 0% (24th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-24574
- Weakness: CWE-613
- Affected product: Pyload
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-41133?
- 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.
- How severe is CVE-2026-41133?
- CVE-2026-41133 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-41133 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-41133?
- CVE-2026-41133 affects Pyload. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-41133?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-41133 have an EU (EUVD) identifier?
- Yes. CVE-2026-41133 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24574.
- When was CVE-2026-41133 published?
- CVE-2026-41133 was published on 2026-04-22 and last updated on 2026-06-17.
References
- https://github.com/pyload/pyload/commit/e95804fb0d06cbb07d2ba380fc494d9ff89b68c1
- https://github.com/pyload/pyload/security/advisories/GHSA-66hx-chf7-3332
Affected products (1)
- cpe:2.3:a:pyload:pyload:*:*:*:*:*:*:*:*
More vulnerabilities in Pyload
- CVE-2026-33511 — Critical (CVSS 9.8): pyLoad is a free and open-source download manager written in Python. From version 0.4.20 to before version…
- CVE-2023-0435 — Critical (CVSS 9.8): Excessive Attack Surface in GitHub repository pyload/pyload prior to 0.5.0b3.dev41.
- CVE-2023-0297 — Critical (CVSS 9.8): Code Injection in GitHub repository pyload/pyload prior to 0.5.0b3.dev31.
- CVE-2024-47821 — Critical (CVSS 9.1): pyLoad is a free and open-source Download Manager. The folder `/.pyload/scripts` has scripts which are run when certain…
- CVE-2024-32880 — Critical (CVSS 9.1): pyload is an open-source Download Manager written in pure Python. An authenticated user can change the download folder…
- CVE-2023-47890 — High (CVSS 8.8): pyLoad 0.5.0 is vulnerable to Unrestricted File Upload.
Other CWE-613 (Insufficient Session Expiration) vulnerabilities
- CVE-2024-8888 — Critical (CVSS 10.0): An attacker with access to the network where CIRCUTOR Q-SMT is located in its firmware version 1.0.4, could steal the…
- CVE-2026-46455 — Critical (CVSS 9.8): Insufficient Session Expiration vulnerability in Apache Camel Keycloak Component. The camel-keycloak security helper…
- CVE-2026-21622 — Critical (CVSS 9.8): Insufficient Session Expiration vulnerability in hexpm hexpm/hexpm ('Elixir.Hexpm.Accounts.PasswordReset' module)…
- CVE-2025-59786 — Critical (CVSS 9.8): 2N Access Commander version 3.4.2 and prior improperly invalidates session tokens, allowing multiple session cookies to…
- CVE-2026-26342 — Critical (CVSS 9.8): Tattile Smart+, Vega, and Basic device families firmware versions 1.181.5 and prior implement an authentication token…
- CVE-2026-1435 — Critical (CVSS 9.8): Not properly invalidated session vulnerability in Graylog Web Interface, version 2.2.3, due to incorrect management of…
Browse all CWE-613 (Insufficient Session Expiration) vulnerabilities →