Bug 2533566 (CVE-2026-90852)

Summary:	CVE-2026-90852 com.github.luben/zstd-jni: luben zstd-jni: Remote use-after-free vulnerability in dictionary sharing
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	amctagga, ant, anujha, aoconnor, asoldano, asyoung, ataylor, avibelli, bbaranow, bgeorges, bmaxwell, bniver, bstansbe, ccranfor, cescoffi, cmah, dandread, dkreling, dlofthou, ehugonne, ewittman, flucifre, fmariani, fmongiar, gmalinko, gmeno, groman, gsmet, gtanzill, istudens, ivassile, iweiss, janstey, jbuscemi, jhollowa, jmartisk, jnethert, jpechane, jwon, kaycoth, lthon, manderse, mbenjamin, mcarlett, mhackett, mosmerov, msvehla, nipatil, nwallace, olubyans, pantinor, pberan, pdelbell, pesilva, pgallagh, pjindal, pmackay, prichard, probinso, rguimara, rhel-process-autobot, rkubis, rruss, rstancel, rstepani, rsvoboda, sbiarozk, sostapov, sthirugn, tcunning, thjenkin, tqvarnst, vdosoudi, vereddy, watson-tool-maintainers, yfang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in luben zstd-jni. This flaw involves a use-after-free vulnerability in the ZstdCompressCtx.loadDict function, which handles dictionary sharing. A remote attacker could exploit this by manipulating dictionary sharing operations, potentially leading to denial of service, information disclosure, or arbitrary code execution.	Story Points:	---
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2533568, 2533569, 2533571, 2533573, 2533570, 2533572
Bug Blocks:

Description OSIDB Bzimport 2026-09-15 02:41:26 UTC

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.

Comment 1 Jon Orris 2026-09-22 14:01:55 UTC

This issue has been addressed in the following products:

  Red Hat Build of Apache Camel 3.33 for Quarkus 3.33.3.SP2

Via RHSA-2026:70257 https://access.redhat.com/errata/RHSA-2026:70257

Comment 2 Jon Orris 2026-09-24 19:58:18 UTC

This issue has been addressed in the following products:

  Red Hat build of Apache Camel 4.18.4 for Spring Boot 3.5.16

Via RHSA-2026:71675 https://access.redhat.com/errata/RHSA-2026:71675