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TI-2024-34052 Aliases CVE-2024-50633GHSA-3wg7-r7q5-r2jf

Authorization bypass in Indico

Priority HIGH 72CWE-201Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-201 and CWE-639.

Summary

A Broken Object Level Authorization (BOLA) vulnerability in Indico through 3.3.5 allows attackers to read information by sending a crafted POST request to the component /api/principals. NOTE: this is disputed by the Supplier because the product intentionally lets all users retrieve certain information about other user accounts (this functionality is, in the current design, not restricted to any privileged roles such as event organizer).

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00635 50th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed indico (PyPI): 3.3.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
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
indicoIndico2.2 – 3.3.5—No fix listedCNA
—indico (PyPI)3.2.9 to before 3.3.33.3.3Patch availableGHSA-3wg7-r7q5-r2jf
  • Indico Vendorindico Affected 2.2 – 3.3.5 Fixed in — No fix listed CNA
  • indico (PyPI) Vendor— Affected 3.2.9 to before 3.3.3 Fixed in 3.3.3 Patch available GHSA-3wg7-r7q5-r2jf

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cern:indico:*:*:*:*:*:*:*:*3.2.9 – 3.3.2Vulnerableindico
  • cpe:2.3:a:cern:indico:*:*:*:*:*:*:*:* Versions 3.2.9 – 3.3.2 Vulnerable ·indico

Remediation

  • Fix · GHSA-3wg7-r7q5-r2jf indico (PyPI) Fixed in 3.3.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-50633
  2. 2026-10-03 Alias added: GHSA-3wg7-r7q5-r2jf
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Exploit 1

Advisory 1

Other 2

  • TI-2026-25492 Indico discloses local files resulting in Remote Code Execution through LaTeX injection CVSS 4.0HIGH 7.7
  • TI-2026-20806 Indico has Server-Side Request Forgery (SSRF) in multiple places CVSS 4.0MEDIUM 6.9
  • TI-2026-22632 Indico missing access check in event series management API CVSS 3.1MEDIUM 6.5
  • TI-2021-10724 CERN Indico before 2.3.4 can use an attacker-supplied Host header in a password reset link. CVSS 3.1HIGH 7.5
  • TI-2024-30448 Indico has a Cross-Site-Scripting during account creation CVSS 3.1MEDIUM 6.1
  • TI-2025-33566 Indico vulnerable to user enumeration via API endpoint CVSS 4.0MEDIUM 5.3
See all 10 →

Sources

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