---
id: CVE-2026-90852
title: A vulnerability has been found in luben zstd-jni up to 1.5.7-13
summary: >-
  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 …
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-119
  - CWE-416
  - CWE-825
vendor: luben
product: zstd-jni
affected:
  - zstd-jni 1.5.7-13
published: '2026-09-15'
updated: '2026-09-15'
sourceUpdated: '2026-09-15T19:17:46.910'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90852'
references:
  - url: 'https://github.com/luben/zstd-jni/'
    label: cna@vuldb.com
  - url: >-
      https://github.com/luben/zstd-jni/commit/a560131d7834598afd9cea6b7c107bc88e915936
    label: cna@vuldb.com
  - url: 'https://github.com/luben/zstd-jni/issues/404'
    label: cna@vuldb.com
  - url: 'https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-90852'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/927022'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/403407'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/403407/cti'
    label: cna@vuldb.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90852.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-90852'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2533566'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-90852'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90852'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
  - exploit-available
epss: 0.00314
epssPercentile: 0.24595
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-15T18:17:19.961312Z'
ingestedAt: '2026-09-15T03:19:45.418Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Important · affected: Exploit Intelligence, OpenShift Developer Tools and Services, Red Hat build of Apache Camel 4 for Quarkus 3, Red Hat build of Apache Camel for Spring Boot 4, Red Hat build of Apicurio Registry 3, Red Hat build of Debezium 3, … · no fix planned: Red Hat Ceph Storage 9, Exploit Intelligence, OpenShift Developer Tools and Services, Red Hat build of Apache Camel 4 for Quarkus 3, … · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90852.json)