CVE-2026-33057: PYSEC-2026-412 - Mesop Affected by Unauthenticated Remote Code Execution via Test Suite Route /exec-py

CVE-2026-33057 · Severity: low · CVSS 3.1 · Published 2026-06-29

Mesop Affected by Unauthenticated Remote Code Execution via Test Suite Route /exec-py

Technologies: mesop (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2026-33057 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-33057 being exploited in the wild.
How severe is CVE-2026-33057?
Low severity, with a CVSS score of 3.1, published 29 June 2026.
Which products and versions are affected?
mesop (PyPI) ECOSYSTEM:introduced=0,fixed=1.2.3.
Is there a fix for CVE-2026-33057?
Yes. mesop (PyPI): upgrade to 1.2.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-33057?
Check whether you run mesop (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • mesop (PyPI): upgrade to 1.2.3 or later
    pip install "mesop>=1.2.3"

Affected products

  • mesop (PyPI) ECOSYSTEM:introduced=0,fixed=1.2.3

Identifiers

  • CVE-2026-33057
  • GHSA-gjgx-rvqr-6w6v
  • PYSEC-2026-412

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