🛡️ CVE-2023-0434 — pyload

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: None.
• Integrity impact: None.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2023-0434 is classified as CWE-20: Improper Input Validation. The application accepts input without checking that it has the expected form, so malformed values reach code that assumes they are well formed.

Affected software

CVE-2023-0434 is recorded against 2 packages.

• pyload
• pyload-ng (fixed in 0.5.0b3.dev40)

Timeline and source

Published on 22 January 2023 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
huntr.dev
github.com
huntr.dev

Other advisories for this package

pyload has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2026-44226 (5.3 Medium, published 11 May 2026)
• CVE-2026-41133 (8.8 High, published 22 Apr 2026)
• CVE-2026-40071 (5.4 Medium, published 9 Apr 2026)
• CVE-2026-35464 (7.5 High, published 7 Apr 2026)
• CVE-2026-33992 (6.5 Medium, published 27 Mar 2026)
• CVE-2026-33509 (7.5 High, published 24 Mar 2026)
• CVE-2026-33511 (9.8 Critical, published 24 Mar 2026)
• CVE-2026-32808 (8.1 High, published 20 Mar 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-20: Improper Input Validation) in other software:

• CVE-2022-29201 (5.0 Medium, published 9 Jul 2026)
• CVE-2022-29192 (5.0 Medium, published 9 Jul 2026)
• CVE-2016-1517 (published 9 Jul 2026)
• CVE-2022-29213 (5.0 Medium, published 9 Jul 2026)
• CVE-2022-29191 (5.0 Medium, published 9 Jul 2026)
• CVE-2022-29212 (5.0 Medium, published 9 Jul 2026)
• CVE-2022-29211 (5.0 Medium, published 9 Jul 2026)
• CVE-2022-29207 (5.0 Medium, published 9 Jul 2026)

Details

Affected Packages

References