CVE-2026-90852

HIGH 7.3

luben zstd-jni Dictionary Sharing ZstdCompressCtx.java ZstdCompressCtx.loadDict use after free

CVSS Score

7.3

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability has been found in luben zstd-jni up to 1.5.7-13. This vulnerability affects the function ZstdCompressCtx.loadDict of the file ZstdCompressCtx.java of the component Dictionary Sharing. Such manipulation leads to use after free. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.5.7-14 is able to resolve this issue. The name of the patch is a560131d7834598afd9cea6b7c107bc88e915936. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CWE	CWE-416 CWE-119
Vendor	luben
Product	zstd-jni
Published	Sep 15, 2026
Last Updated	Sep 15, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

luben / zstd-jni

1.5.7-13

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/403407 vuldb.com: https://vuldb.com/vuln/403407/cti vuldb.com: https://vuldb.com/cve/CVE-2026-90852 vuldb.com: https://vuldb.com/submit/927022 github.com: https://github.com/luben/zstd-jni/issues/404 github.com: https://github.com/luben/zstd-jni/commit/a560131d7834598afd9cea6b7c107bc88e915936 github.com: https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14 github.com: https://github.com/luben/zstd-jni/

Credits

🔍 Yu Bao from PayPal Cyber Security Team (VulDB User) VulDB CNA Team