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TI-2026-73629 Aliases CVE-2026-108388

Indico legacy export cache exposes restricted contribution metadata

Priority LOW 16CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
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. Impact type from CWE-863.

Summary

Indico from 3.3.3 through 3.3.13 checks inherited contribution-management permission against the web-session user instead of the user passed to Contribution.can_manage (CWE-863). A low-privileged user can induce a privileged user to request a crafted legacy contribution export, which stores speaker or author email addresses and contribution access-control entries in an API cache entry that is retrievable with less privilege. An attacker needs a victim with higher privileges to act on the crafted request.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Indico is a feature-rich event management system. Indico 3.3.3 through 3.3.13 incorrectly uses the ambient web-session user instead of the user supplied to Contribution.can_manage when checking inherited event contribution-management permission. A low-privileged user can induce a privileged user to request a crafted legacy contribution export and cause speaker or author email addresses and contribution access-control entries to be stored in an API cache entry retrievable with less privilege. This issue was fixed in Indico 3.3.14.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00256 17th percentileScored 2026-11-07
Fix Fixed indico (indico): 3.3.14

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

VendorProductAffected versionsFixed inStatusSource
indicoindico3.3.3 to before 3.3.143.3.14Patch availableCNA
  • indico Vendorindico Affected 3.3.3 to before 3.3.14 Fixed in 3.3.14 Patch available CNA

CPE names Threatist (inferred) · 1

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

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

Remediation

Upgrade Indico to version 3.3.14, which fixes the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA indico (indico) Fixed in 3.3.14

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-108388
  2. 2026-10-15 CISA SSVC decision points changed

References

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