CVE-2026-45306Public exploitNetwork attack vector

Account takeover via downloadable session files

Published May 28, 2026 · Updated May 28, 2026

Improper path restriction in pyLoad before 0.5.0b3.dev100 allows remote authenticated users to download other users' session files. The storage-folder setter rejects paths under PKGDIR and userdir but omits the Flask cache directory, so /files/get/ serves files from that directory. Administrative access is required to change storage_folder; a stolen victim session enables account takeover without interrupting the service.

CVSS severity6.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper path restriction in pyLoad before 0.5.0b3.dev100 allows remote authenticated users to download other users' session files. The storage-folder setter rejects paths under PKGDIR and userdir but omits the Flask cache directory, so /files/get/ serves files from that directory. Administrative access is required to change storage_folder; a stolen victim session enables account takeover without interrupting the service.

The record

CVE
CVE-2026-45306
Published
May 28, 2026
Updated
May 28, 2026
Vendor
pyLoad
Product
pyLoad
Classifications
CWE-706, T1539
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 28, 2026CVE publishedPublication date reported by the CVE source.
  2. May 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.5.0b3.dev100

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

pyLoad · pyLoadversion=< 0.5.0b3.dev100

Published CVSS scores

6.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-706Use of Incorrectly-Resolved Name or Reference
T1539Steal Web Session Cookie

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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