Vulnerability Description
Improper handling of highly compressed data in the GZIP auto-decompression handler in Amazon ion-java before 1.12.0 might allow remote actors to cause a denial of service via a crafted compressed Ion document that expands to an arbitrarily large size upon decompression. To remediate this issue, users should upgrade to version 1.12.0 and configure withGzipDecompressionEnabled(false) and/or set an explicit withMaximumBufferSize() when parsing untrusted input.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://aws.amazon.com/security/security-bulletins/2026-083-aws/
- https://github.com/amazon-ion/ion-java/releases/tag/v1.12.0
- https://github.com/amazon-ion/ion-java/security/advisories/GHSA-wj53-jv76-65mc
FAQ
What is CVE-2026-75936?
CVE-2026-75936 is a vulnerability with a CVSS score of 7.5 (HIGH). Improper handling of highly compressed data in the GZIP auto-decompression handler in Amazon ion-java before 1.12.0 might allow remote actors to cause a denial of service via a crafted compressed Ion ...
How severe is CVE-2026-75936?
CVE-2026-75936 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-75936?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.