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Vulnerabilities

Vulnerability · CVE-2026-33046

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask.

Published Mar 23, 2026 · catalog updated Jun 17, 2026 · Indico is an event

Check if you run it

No confirmed exploitation is on record for CVE-2026-33046. EPSS is 1.02%. Act only if a listed version of Indico is an event is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Indico is an event).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.02%
Remediation
Advisory link
Affected products
cpe cern/indico

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. In versions prior to 3.3.12, due to vulnerabilities in TeXLive and obscure LaTeX syntax that allowed circumventing Indico's LaTeX sanitizer, it is possible to use specially-crafted LaTeX snippets which can read local files or execute code with the privileges of the user running Indico on the server. Note that if server-side LaTeX rendering is not in use (ie was not set in ), this vulnerability does not apply. It is recommended to update to Indico 3.3.12 as soon as possible. It is also strongly recommended to enable the containerized LaTeX renderer (using ), which isolates it from the rest of the system. As a workaround, remove the setting from (or comment it out or set it to ) and restart the and services to disable LaTeX functionality.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe cern/indicoversion unspecified

How to fix CVE-2026-33046

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-33046. EPSS is 1.02%. Act only if a listed version of Indico is an event is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-22: Path Traversal; CWE-78: OS Command Injection. EPSS 1.02%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 23, 2026 · NIST NVD

    Detected

    Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. In versions prior to 3.3.12, due to vulnerabilities in TeXLive and obscure LaTeX syntax that allowed circumventing Indico's LaTeX sanitizer, it is possible to use specially-crafted LaTeX snippets which can read local files or execute code with the privileges of the user running Indico o

  2. Jun 17, 2026 · NIST NVD

    Updated

    Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. In versions prior to 3.3.12, due to vulnerabilities in TeXLive and obscure LaTeX syntax that allowed circumventing Indico's LaTeX sanitizer, it is possible to use specially-crafted LaTeX snippets which can read local files or execute code with the privileges of the user running Indico o

Sources

  • CVE.orgVulnerability recordCVE-2026-33046

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-33046

    30-day exploitation probability 1.0%

    first.org
  • NIST NVDVulnerability recordCVE-2026-33046

    Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. In versions prior to 3.3.12, due to vulnerabilities in TeXLive and obscure LaTeX syntax that allowed circumventing Indico's LaTeX sanitizer, it is possible to use spec

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.