CVE-2026-90852

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

HIGH
7.3
CVSS Score
Published: September 15, 2026 at 02:15 AM UTC
Updated: September 15, 2026 at 07:17 PM UTC
1 product affected across 1 vendorZstd Jni

Using zstd-jni by luben?

Get instant alerts when new vulnerabilities affect zstd-jni - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.3
Exploit prediction
EPSS 0.5%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in 1.5.7-14 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (8)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/403407
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/403407/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-90852
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/927022
ExploitIssue Tracking
Source: cverecord
https://github.com/luben/zstd-jni/issues/404
Product
Source: cverecord
https://github.com/luben/zstd-jni/

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-416CWE-119

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card