CVE-2026-101269— Incorrect session validation for API-uploaded files
Quick assessment
Affected
pretix pretix
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
The mechanism binding API-uploaded files to the uploader's authentication method is not working correctly and the same session token is used for all token-based API users. Since API-uploaded files are refered to by randomly generated UUIDs and only exist for a
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I. Basic Information for CVE-2026-101269
Vulnerability Information
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Vulnerability Title
Incorrect session validation for API-uploaded files
Source: CVE Program / CVE List V5
Vulnerability Description
The mechanism binding API-uploaded files to the uploader's authentication method is not working correctly and the same session token is used for all token-based API users. Since API-uploaded files are refered to by randomly generated UUIDs and only exist for a day, there is virtually no risk, but it renders the added protection mechanism useless.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-101269
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-101269 (1)
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https://pretix.eu/about/en/blog/20260929-release-2026-7-1/ vendor-advisory
Same Patch Batch · pretix · 2026-09-29 · 6 CVEs total
| CVE-2026-101267 | 2.7 LOW | Revenue information leak |
| CVE-2026-101270 | 2.1 LOW | HTML injection |
| CVE-2026-101271 | 2.1 LOW | OAuth credentials not disabled when application is disabled |
| CVE-2026-101268 | 1.7 LOW | Customer session fixation |
| CVE-2026-101266 | 1.3 LOW | Checkout validation bypass |
IV. Related Vulnerabilities
V. Comments for CVE-2026-101269
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