TI-2026-69686 Aliases CVE-2026-107395 GHSA-6p4f-j8j6-463q

Missing access check in Indico legacy session export API

LOW 20CWE-862Published 2026-10-08 · Updated 2026-10-09

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-862.

Summary

Indico before 3.3.13 is affected. Its legacy session export API lacks an access check (CWE-862), so an authenticated user can retrieve details of a restricted session they cannot access when the containing event is accessible. That user can read session metadata such as the title, description and conveners.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00235 14th percentileScored 2026-11-07

Fix Fixed indico (indico): 3.3.13indico (PyPI): 3.3.13

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
indico	indico	before 3.3.13	3.3.13	Patch available	CNA
—	indico (PyPI)	before 3.3.13	3.3.13	Patch available	GHSA-6p4f-j8j6-463q

indico Vendorindico Affected before 3.3.13 Fixed in 3.3.13 Patch available CNA
indico (PyPI) Vendor— Affected before 3.3.13 Fixed in 3.3.13 Patch available GHSA-6p4f-j8j6-463q

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:cern:indico::::::::	—	—	indico

cpe:2.3:a:cern:indico:*:*:*:*:*:*:*:* Versions — — ·indico

Remediation

Upgrade the indico package on PyPI to version 3.3.13, which fixes the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fix · CNA indico (indico) Fixed in 3.3.13
Fix · GHSA-6p4f-j8j6-463q indico (PyPI) Fixed in 3.3.13 Advisory →

Timeline

2026-10-09 Threatist record created from CVE-2026-107395
2026-10-09 Alias added: GHSA-6p4f-j8j6-463q
2026-10-09 CISA SSVC decision points changed

References

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-107395

Other 4

TI-2024-34052 Authorization bypass in Indico CVSS 3.1HIGH 7.5
TI-2026-85686 Authorisation bypass in Rucio REST API lets users get signed URLs CVSS 3.1HIGH 8.1
TI-2026-20298 Rucio WebUI has a Reflected Cross-site Scripting Vulnerability CVSS 3.1HIGH 8.1
TI-2026-20801 Rucio WebUI Vulnerable to Stored Cross-site Scripting (XSS) through Custom Rule Function CVSS 3.1HIGH 7.3
TI-2026-20300 Rucio WebUI has Username Enumeration via Login Error Message CVSS 3.1MEDIUM 5.3
TI-2026-20804 Rucio WebUI has a Stored Cross-site Scripting (XSS) Vulnerability in its Custom RSE Attribute CVSS 3.1MEDIUM 6.1

See all 28 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences