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3 vulnerabilities
CVE-2026-101272 (GCVE-0-2026-101272)
Vulnerability from cvelistv5 – Published: 2026-10-28 10:33 – Updated: 2026-10-28 10:33
VLAI
EPSS
VEX
Title
Incorrect session validation for API-created shredder exports
Summary
The mechanism binding files generated during a shredding process to the authentication method is not working correctly and the same session token is used for all token-based API users. This is similar to an issue fixed in 2026.7.1 but was missed while creating the fix. Since the files are referred to by randomly generated UUIDs and only exist for a day, there is virtually no risk, but it renders the added protection mechanism useless. As part of the fix, we have also improved hardening of some other related code areas.
Severity
References
1 reference
| URL | Tags |
|---|---|
| https://pretix.eu/about/en/blog/20261028-release-… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pretix |
Affected:
0 , < 2026.6.4
(python)
Affected: 2026.7.0 , < 2026.7.3 (python) Affected: 2026.8.0 , < 2026.8.1 (python) |
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CVE-2026-101274 (GCVE-0-2026-101274)
Vulnerability from cvelistv5 – Published: 2026-10-28 10:31 – Updated: 2026-10-28 10:31
VLAI
EPSS
VEX
Summary
When pretix is used as the identity provider in a Single-Sign-On (SSO) setup for customer accounts, the system did not properly validate the `response_type` requested in an authorization request against the configured grant type of the SSO client. This means that if an SSO client was configured to only allow the `code` response type, which requires knowledge of the client secret to use and would wrongfully send a response type like `id_token`, it would receive back a valid token. Exploiting this requires the attacker to run JavaScript on the page specified by `redirect_uri`, which must be from a list specified in the client configuration.
Severity
References
1 reference
| URL | Tags |
|---|---|
| https://pretix.eu/about/en/blog/20261028-release-… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pretix |
Affected:
0 , < 2026.6.4
(python)
Affected: 2026.7.0 , < 2026.7.3 (python) Affected: 2026.8.0 , < 2026.8.1 (python) |
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CVE-2026-101273 (GCVE-0-2026-101273)
Vulnerability from cvelistv5 – Published: 2026-10-28 10:29 – Updated: 2026-10-28 10:29
VLAI
EPSS
VEX
Title
Giftcard enumeration
Summary
Some of our API endpoints allowed to create order payments referencing a gift card by using the auto-incremented internal ID. This ID was not checked and allowed creating payments that reference gift cards from different organizers and thereby obtaining their secret. The gift card is not charged in this case, but by then triggering a refund on the payment, one can increase the value of the gift card.
Severity
References
1 reference
| URL | Tags |
|---|---|
| https://pretix.eu/about/en/blog/20261028-release-… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pretix |
Affected:
0 , < 2026.6.4
(python)
Affected: 2026.7.0 , < 2026.7.3 (python) Affected: 2026.8.0 , < 2026.8.1 (python) |
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