CVE-2026-90852: Use After Free in luben zstd-jni
CVE-2026-90852 is a use-after-free vulnerability in the luben zstd-jni library version 1.5.7-13 affecting the ZstdCompressCtx.loadDict function. This flaw allows remote attackers to exploit memory corruption by manipulating dictionary sharing, potentially leading to undefined behavior. The issue has been publicly disclosed, and a fix is available in version 1.5.7-14.
AI Analysis
Technical Summary
The vulnerability exists in the ZstdCompressCtx.loadDict function of the Dictionary Sharing component in luben zstd-jni up to version 1.5.7-13. It results from improper handling of memory leading to use-after-free conditions. Remote attackers can exploit this flaw without authentication or user interaction. The vendor responded promptly and released a patch identified by commit a560131d7834598afd9cea6b7c107bc88e915936, resolving the issue in version 1.5.7-14.
Potential Impact
Successful exploitation of this use-after-free vulnerability may lead to memory corruption, which can cause application crashes or potentially allow attackers to execute arbitrary code or disrupt service. The CVSS 4.0 base score is 6.9 (medium severity), reflecting network attack vector, low complexity, no privileges or user interaction required, and limited confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Upgrade the affected component to version 1.5.7-14 or later, which contains the official fix for this vulnerability. No other mitigations are specified or required as the vendor has provided an official patch.
CVE-2026-90852: Use After Free in luben zstd-jni
Description
CVE-2026-90852 is a use-after-free vulnerability in the luben zstd-jni library version 1.5.7-13 affecting the ZstdCompressCtx.loadDict function. This flaw allows remote attackers to exploit memory corruption by manipulating dictionary sharing, potentially leading to undefined behavior. The issue has been publicly disclosed, and a fix is available in version 1.5.7-14.
CVSS v4.0
Score 6.9medium
Affected software
luben
zstd-jni
pkg:maven/com.github.luben/zstd-jnicpe:2.3:a:luben:zstd-jni:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability exists in the ZstdCompressCtx.loadDict function of the Dictionary Sharing component in luben zstd-jni up to version 1.5.7-13. It results from improper handling of memory leading to use-after-free conditions. Remote attackers can exploit this flaw without authentication or user interaction. The vendor responded promptly and released a patch identified by commit a560131d7834598afd9cea6b7c107bc88e915936, resolving the issue in version 1.5.7-14.
Potential Impact
Successful exploitation of this use-after-free vulnerability may lead to memory corruption, which can cause application crashes or potentially allow attackers to execute arbitrary code or disrupt service. The CVSS 4.0 base score is 6.9 (medium severity), reflecting network attack vector, low complexity, no privileges or user interaction required, and limited confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Upgrade the affected component to version 1.5.7-14 or later, which contains the official fix for this vulnerability. No other mitigations are specified or required as the vendor has provided an official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-14T05:37:05.957Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa8af5255bf5e2cf503d48f
Added to database: 09/15/2026, 02:37:06 UTC
Last enriched: 09/15/2026, 02:46:35 UTC
Last updated: 09/15/2026, 03:10:52 UTC
Views: 6
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