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CVE-2023-37941Superset Insecure Deserialization

Apache Superset Deserialization of Untrusted Data vulnerability

Published Sep 6, 2023 · Updated Sep 8, 2026 · Also known as BIT-superset-2023-37941, GHSA-fj4x-m62j-wvwg, PYSEC-2026-1175

Key Facts

Patch immediately
  • CVE-2023-37941 is a medium-severity vulnerability (CVSS 6.6 v3.1) affecting Superset (Apache), Apache Superset (pypi).
  • It is exploited in the wild, listed in Industry KEV feed since Aug 12, 2025. Public exploit code is available.
  • EPSS estimates a 35% probability of exploitation in the next 30 days.
  • Fixed versions are available, including Apache Superset <=2.1.0, Apache Superset 2.1.1, Superset 2.1.1.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Scores

CVSS v3.1

6.6

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

35%

Higher than 98.4% of all scored CVEs

Exploit maturity

Weaponized

ATLAS score

50/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Aug 12, 2025

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Weaponized

Public exploit code

1

Proof-of-concept links

In-the-wild evidence

1

Reports of active use

Description

If an attacker gains write access to the Apache Superset metadata database, they could persist a specifically crafted Python object that may lead to remote code execution on Superset's web backend.

The Superset metadata db is an 'internal' component that is typically only accessible directly by the system administrator and the superset process itself. Gaining access to that database should be difficult and require significant privileges.

This vulnerability impacts Apache Superset versions 1.5.0 up to and including 2.1.0. Users are recommended to upgrade to version 2.1.1 or later.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
Industry KEV feedAug 12, 2025n/aNot reported

Affected Products

4 affected entries in total
ProductAffected versionsFixed in
SupersetApache>= 1.5.02.1.0
Apache Supersetpypi>= 1.5.02.1.1

Patched Releases

Apache Superset

<=2.1.0, 2.1.1

Superset

2.1.1

Timeline

  1. Publicly disclosed

    Sep 6, 2023

  2. Added to Industry KEV feed

    Aug 12, 2025

  3. Last updated

    Sep 8, 2026

Weakness Type

  • CWE-502 Deserialization of Untrusted Data

References

10 more references in the full CVE brief

FAQ

Common Questions.

Is CVE-2023-37941 On Your Attack Surface?

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Figures as of Oct 19, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

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