CVE-2026-108378 dataclasses-avroschema - Code Injection

dataclasses-avroschema 0.40.0 through 0.70.5 contains a code injection vulnerability caused by unescaped docstring rendering in ClassRepresentation.render_docstring, letting attackers execute arbitrary Python code during module import, exploit requires crafted schema doc values.

CVSS base score 8.8 /10

High

CISA KEV: Not listed
Public exploit: None known
Authentication: Not required
EPSS: 0.34% chance of exploitation in 30 days

View the NVD record ↗

Details

Type: Code Injection
Impact: Remote Code Execution
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 13 October 2026
Updated: 15 October 2026
Weakness: CWE-94

Vendor fix

Upgrade to version 0.70.6 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

Is CVE-2026-108378 reachable
in your estate?

A CVE describes the software, not your exposure. Panop discovers whether you run the affected product, then tests whether an attacker can actually reach it.

Book a demo Request a scan