Vulnerability · Published Sep 29, 2026 · Assigned by rami.io

CVE-2026-101266Checkout validation bypass

Low 1.3

In plain English

A low-severity improper input validation in pretix from pretix. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).

Severity (CVSS 4.0)1.3Low

Exploit odds (30 days)0.3%top 81.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A logic flaw in the checkout flow allows users to bypass validations performed during the check-in by skipping entire check-in steps.

Affected products (as reported)

Vendor	Product	Versions
pretix	pretix	0.0 – before 2026.5.52026.6.0 – before 2026.6.22026.7.0 – before 2026.7.1

Weakness: CWE-20 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:U

References

https://pretix.eu/about/en/blog/20260929-release-2026-7-1/ vendor-advisory