Fluid Attacks Database

Description

Apache Avro Java SDK is Vulnerable to Code Injection Improper Control of Generation of Code ('Code Injection') vulnerability in Apache Avro Java SDK when generating specific records from untrusted Avro schemas.

This issue affects Apache Avro Java SDK: all versions through 1.11.4 and version 1.12.0.

Users are recommended to upgrade to version 1.12.1 or 1.11.5, which fix the issue.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Package	Affected version	Patched versions
maven	org.apache.avro:avro-compiler	=1.12.0 \|\| >=1.12.0 <1.12.1 \|\| >=0 <1.11.5	1.12.1, 1.11.5
maven	org.apache.avro:avro	>=1.12.0 <1.12.1 \|\| >=1.12.0 <=1.12.0 \|\| >=0 <1.11.5	1.12.1, 1.11.5
pypi	avro	=1.10.0 \|\| =1.10.1 \|\| =1.10.2 \|\| =1.11.0 \|\| =1.11.1 \|\| =1.11.2 \|\| =1.11.3 \|\| =1.3.3 \|\| =1.4.1 \|\| =1.5.0 \|\| =1.5.1 \|\| =1.5.2 \|\| =1.5.3 \|\| =1.5.4 \|\| =1.6.0 \|\| =1.6.1 \|\| =1.6.2 \|\| =1.6.3 \|\| =1.7.0 \|\| =1.7.1 \|\| =1.7.2 \|\| =1.7.3 \|\| =1.7.4 \|\| =1.7.5 \|\| =1.7.6 \|\| =1.7.7 \|\| =1.8.0 \|\| =1.8.1 \|\| =1.8.2 \|\| =1.9.0 \|\| =1.9.1 \|\| =1.9.2 \|\| >=0 <1.11.5	1.11.5

Aliases

1. CVE-2025-330422. NVD-2025-330423. OSV-2025-330424. OSV-PYSEC-2026-265. GHSA-rp46-r563-jrc76. GCVE-2025-330427. openwall.com

References

1. https://github.com/apache/avro/pull/31502. https://github.com/apache/avro/commit/84bc7322ca1c04ab4a8e4e708acf1e271541aac43. https://github.com/pypa/advisory-database/tree/main/vulns/avro/PYSEC-2026-26.yaml4. https://issues.apache.org/jira/browse/AVRO-40535. https://lists.apache.org/thread/fy88wmgf1lj9479vrpt12cv8x73lroj16. http://www.openwall.com/lists/oss-security/2026/02/12/27. https://github.com/apache/avro

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