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CVE-2026-90560

8.2 · HIGH

zstd-jni versions 1.2.0 through 1.5.7-13 contain an out-of-bounds read vulnerability in the ZstdDictDecompress constructor because offset and length arguments are never validated against the dictio…

Published Sep 12, 2026CWE-125EPSS 0.62%

Overview

CVE-2026-90560 is a high-severity vulnerability. It was published on September 12, 2026 and has a CVSS 3.1 base score of 8.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

zstd-jni versions 1.2.0 through 1.5.7-13 contain an out-of-bounds read vulnerability in the ZstdDictDecompress constructor because offset and length arguments are never validated against the dictionary array bounds. Attackers can supply arbitrary offset or length values to read memory past the end of the supplied array, potentially causing JVM termination.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/luben/zstd-jniGitHubgithub.com/luben/zstd-jni/blob/v1.2.0/src/main/java/com/github/luben/zstd/ZstdDictDecompress.java#L37GitHubgithub.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/ZstdDictDecompress.java#L49GitHubgithub.com/luben/zstd-jni/commit/b74ab242d640c40897e62aab4c744ddfad1f915fGitHubgithub.com/luben/zstd-jni/issues/405GitHubgithub.com/luben/zstd-jni/releases/tag/v1.5.7-14Refwww.vulncheck.com/advisories/zstd-jni-1.2.0-through-1.5.7-13-out-of-bounds-read-via-zstddictdecompressGitHubgithub.com/luben/zstd-jni/issues/405

How CyberStrike helps

Frequently asked questions

What is CVE-2026-90560?

CVE-2026-90560 is a high-severity vulnerability. It was published on September 12, 2026 and has a CVSS 3.1 base score of 8.2 (HIGH).

How severe is CVE-2026-90560?

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-90560?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-90560?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-90560 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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