CVE-2026-101269 Incorrect session validation for API-uploaded files

Low 2.3 Published Updated

Incorrect session validation for API-uploaded files in pretix allows bypassing uploader authentication, though risk is low due to UUIDs and short expiration.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-101269?

CVE-2026-101269 is a low-severity authentication bypass vulnerability in pretix, published on 29 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-287

Which versions are affected by CVE-2026-101269?

How do I fix CVE-2026-101269?

No fix has been published for CVE-2026-101269 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-101269 being exploited?

There is no known exploitation of CVE-2026-101269 in the wild and no public exploit code.

Sources

Also known as GHSA-2qwc-826w-vxph.

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