CVE-2026-9712 json
Insecure direct object reference
published 2026-05-27 5 mo ago modified 2026-07-13 3 mo ago also GHSA-72p9-6vv6-gvqh , PYSEC-2026-2960 , EUVD-2026-32530
- cvss
- 3.8
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 12%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- pypi pretix 2026.4.2
- pretix pretix 2026.2.0, 2026.2.2, 2026.3.0, 2026.3.2, 2026.4.0, 2026.4.2, 2026.5.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 3.8 | 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 |
| CNA | 4.0 | 3.8 | 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | pretix | <2026.4.2 |
2026.4.2 |
Affected products
- pretix pretix
Classification
- Weakness
-
- CWE-639 Authorization Bypass Through User-Controlled Key
References
-
pretix.eu
/about/en/blog/20260527-release-2026-4-2/
vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-9712
advisory
-
github.com
/pretix/pretix
package
-
pretix.eu
/about/en/blog/20260527-release-2026-4-2
web
-
pypi.org
/project/pretix
package
-
github.com
/advisories/GHSA-72p9-6vv6-gvqh
advisory
Sources
- CVE List CVE-2026-9712
- GitHub Advisory GHSA-72p9-6vv6-gvqh
- NVD CVE-2026-9712
- OSV PYSEC-2026-2960
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.