{"id":"CVE-2026-108383","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-108383","generatedAt":"2026-10-28T01:11:57.273Z","title":"Newlines, operators, and punctuation can escape the intended reference and inject constrained statements into the generated module, allowing namespace modification or preventing the module from loading.","description":"dataclasses-avroschema generates Avro schemas from Python dataclasses, Pydantic models, and Faust Records and generates Python code from Avro schemas. From version 0.38.0 through 0.70.5, FieldRepresentation.get_field_default renders a schema-controlled enum field default as an enum member reference after applying case conversion but without validating it as an identifier. Newlines, operators, and punctuation can escape the intended reference and inject constrained statements into the generated module, allowing namespace modification or preventing the module from loading. Version 0.70.6 fixes the vulnerability by validating enum defaults as names.","published":"2026-10-13T18:17:18.000Z","lastModified":"2026-10-16T16:00:34.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-94"],"affected":[],"epss":{"score":0.00287,"percentile":0.21067,"date":"2026-10-26","history":[{"date":"2026-10-14","score":0.00287,"percentile":0.19772}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-13T18:17:18.000Z","detail":{"score":"8.8","severity":"HIGH","publishedAt":"2026-10-13T18:17:17.610Z"},"summary":"New CVE, high severity (CVSS 8.8)."}],"references":[{"url":"https://github.com/marcosschroh/dataclasses-avroschema/commit/429f3d705d2d04c0c65e2ef832daed5ff91318fc","source":"security-advisories@github.com"},{"url":"https://github.com/marcosschroh/dataclasses-avroschema/releases/tag/0.70.6","source":"security-advisories@github.com"},{"url":"https://github.com/marcosschroh/dataclasses-avroschema/security/advisories/GHSA-4xxf-mv22-hcr8","source":"security-advisories@github.com"},{"url":"https://github.com/marcosschroh/dataclasses-avroschema/security/advisories/GHSA-4xxf-mv22-hcr8","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-108383","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}