CVE-2026-101266 Checkout validation bypass
Low 1.3
Published
Updated
Check this codebase for CVE-2026-101266 and fix it if it is affected.
What it is: CVE-2026-101266 is a low-severity vulnerability in pretix, published on 29 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-101266 in the wild and no public exploit code.
Affected product: pretix. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-101266/ (Markdown: https://insights.sbomify.com/CVE-2026-101266/index.md)
Attackers can bypass checkout validations by skipping check-in steps, potentially allowing unauthorized ticket purchases or access.
- 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-2026-101266?
CVE-2026-101266 is a low-severity 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
A logic flaw in the checkout flow allows users to bypass validations performed during the check-in by skipping entire check-in steps.
Weakness: CWE-20
Which versions are affected by CVE-2026-101266?
How do I fix CVE-2026-101266?
No fix has been published for CVE-2026-101266 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-101266 being exploited?
There is no known exploitation of CVE-2026-101266 in the wild and no public exploit code.
Sources
Also known as GHSA-v4x7-7x4h-rmj8.