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.
Metrics
Affected Vendors & Products
References
History
Wed, 19 Aug 2026 13:30:00 +0000
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ssvc
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Tue, 18 Aug 2026 20:00:00 +0000
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cvssV3_1
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Tue, 18 Aug 2026 19:45:00 +0000
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| 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. | |
| Title | Memory-amplification denial of service via GZIP decompression bomb in Amazon ion-java | |
| First Time appeared |
Amazon Ion
Amazon Ion amazon Ion Java |
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| Weaknesses | CWE-409 | |
| CPEs | cpe:2.3:a:amazon_ion:amazon_ion_java:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Amazon Ion
Amazon Ion amazon Ion Java |
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| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: AMZN
Published: 2026-08-18T19:34:19.472Z
Updated: 2026-08-19T13:07:38.525Z
Reserved: 2026-08-18T15:50:51.183Z
Link: CVE-2026-75936
Updated: 2026-08-19T13:07:28.430Z
Status : Awaiting Analysis
Published: 2026-08-18T20:17:34.317
Modified: 2026-08-20T13:01:19.947
Link: CVE-2026-75936
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