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CVE-2026-115424— Oc: oc: symlink/hardlink target validation bypass in oc image extract allows file write outside destination

Quick assessment

Affected
Red Hat Red Hat OpenShift Container Platform 4
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 OpenShift 客户端 中发现一个漏洞。当使用 命令提取容器镜像层时，该应用程序未能正确清理指向绝对路径或提取目标目录同级目录的符号链接和硬链接的目标。攻击者可通过提供恶意容器镜像来利用此漏洞，该镜像中嵌入了引用预期提取目录之外位置的链接和链式文件条目。这使得攻击者能够以运行该命令的用户权限，将攻击者控制的内容写入宿主文件系统中的任意位置，从而可能导致在目标目录之外修改文件。

CVSS 5.5 · Medium
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I. Basic Information for CVE-2026-115424

Vulnerability Information
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Vulnerability Title
Oc: oc: symlink/hardlink target validation bypass in oc image extract allows file write outside destination
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the OpenShift client oc. When extracting container image layers with oc image extract, the application fails to properly sanitize symbolic and hard link targets pointing to absolute paths or to sibling directories of the extraction destination. An attacker who supplies a malicious container image can exploit this vulnerability by embedding links, and a chained file entry, that reference locations outside the intended extraction directory. This allows the attacker to write attacker-controlled content to arbitrary locations on the host filesystem with the privileges of the user running the command, potentially leading to file modification outside the destination directory.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-61
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat OpenShift Container Platform 4 - cpe:/a:redhat:openshift:4
Red Hat Red Hat OpenShift Container Platform 4 - cpe:/a:redhat:openshift:4
Red Hat Red Hat OpenShift Container Platform 4 - cpe:/a:redhat:openshift:4

II. Public POCs for CVE-2026-115424

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III. Intelligence Information for CVE-2026-115424

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Other References for CVE-2026-115424 (2)

Same Patch Batch · Red Hat · 2026-10-22 · 5 CVEs total

CVE-2026-111079 7.4 HIGH Goose: goose: shell history and environment leak via terminal integration
CVE-2026-115207 5.5 MEDIUM Patch: filename validation bypass in reversal fallback allows file creation outside the wo
CVE-2026-115221 5.4 MEDIUM Ipa: freeipa: freeipa uses subject cn as proof of certificate ownership
CVE-2026-115449 3.5 LOW Libslirp: libslirp: icmp echo reply length desynchronization leaks host ip to guest

IV. Related Vulnerabilities

Same product: Red Hat OpenShift Container Platform 4
Same vendor: Red Hat
Same weakness: CWE-61

V. Comments for CVE-2026-115424

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