High7.5Red Hat Linux

High [CVE-2026-82393] Arbitrary file write and code execution via path traversal in tarball dependency manifest

This high-severity Red Hat Linux advisory covers CVE-2026-82393 affecting Red Hat Build of Keycloak, Red Hat JBoss Enterprise Application Platform 8, Red Hat JBoss Enterprise Application Platform Expansion Pack.

CVE-2026-82393 Published Aug 31, 2026Updated by vendor Aug 31, 2026

CVE-2026-82393

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

pnpm is a package manager. The overwrite can replace shell startup files, Git hooks, or installed package code and lead to code execution.

This issue is fixed in versions 10.34.5, and 11.11.0. A flaw was found in pnpm.

This vulnerability allows a remote attacker to perform a path traversal by crafting a malicious tarball dependency's manifest name. This can result in attacker-controlled files overwriting arbitrary filesystem paths, potentially leading to arbitrary code execution on the affected system.

Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H). Weakness: CWE-22.

Affected Red Hat products: Red Hat Build of Keycloak; Red Hat JBoss Enterprise Application Platform 8; Red Hat JBoss Enterprise Application Platform Expansion Pack. Red Hat lists Red Hat AMQ Broker 7; Red Hat Hardened Images as not affected.

Red Hat does not currently list a fixing RHSA for this CVE.

Affected versions

< 10.34.5
< 11.11.0

Official advisory · high-confidence parse· fetched 1 hour ago·verify at source

Fixed versions

10.34.5
11.11.0

Official advisory · high-confidence parse· fetched 1 hour ago·verify at source

Mitigation

Upgrade to a fixed release: 10.34.5, 11.11.0. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 1 hour ago·verify at source

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