CVE-2026-107395 json
Indico: Missing access check in legacy session export API
published last mo. modified 25d ago also EUVD-2026-95213 , GHSA-6p4f-j8j6-463q , PYSEC-2026-4226
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 14%
- public exploits
- 0
- none known
Summary
Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, an authenticated user can misuse the legacy session export API to retrieve details for a restricted session without access to that session, as long as the containing event is accessible. The missing access check can disclose session metadata such as the title, description, and conveners. This issue is fixed in version 3.3.13.
Patch / fix
- pypi indico 3.3.13
- cern indico 3.3.13
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last mo.
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | indico | <3.3.13 |
3.3.13 |
Affected products
- indico indico
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
github.com
/indico/indico/commit/524e8e93eadcd8484905b1147020a35f5dce6038
web
-
github.com
/indico/indico/security/advisories/GHSA-6p4f-j8j6-463q
web
-
github.com
/indico/indico/releases/tag/v3.3.13
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-107395
advisory
-
github.com
/indico/indico
package
-
pypi.org
/project/indico
package
-
github.com
/advisories/GHSA-6p4f-j8j6-463q
advisory
Sources
- CVE List CVE-2026-107395
- GitHub Advisory GHSA-6p4f-j8j6-463q
- NVD CVE-2026-107395
- OSV PYSEC-2026-4226
Fencer Intel 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.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.