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CVE-2026-54231— Abrt: unsanitized systemd journal content written to dump directory files enables content injection

CVSS 5.5 · Medium EPSS 0.12% · P2

Affected Version Matrix 3

VendorProductVersion RangeStatus
Red HatRed Hat Enterprise Linux 6anyunknown
Red HatRed Hat Enterprise Linux 7anyaffected
Red HatRed Hat Enterprise Linux 8anyaffected
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I. Basic Information for CVE-2026-54231

Vulnerability Information
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Vulnerability Title
Abrt: unsanitized systemd journal content written to dump directory files enables content injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
A content injection vulnerability was found in the ABRT post-create event handler scripts in libreport. The event script queries the systemd journal for log entries matching the crashed process and writes the results to files in the dump directory without sanitizing embedded control characters. A local user can inject arbitrary content into the journal output by embedding newline characters in syslog messages, controlling the content that root writes to dump directory files.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Redhat libreport 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Redhat libreport是美国Redhat公司开源的一个问题报告通用库。 Redhat libreport存在输入验证错误漏洞，该漏洞源于事件脚本查询 systemd 日志获取与崩溃进程匹配日志条目并写入 dump 目录文件时，未过滤嵌入控制字符，导致本地用户能通过在 syslog 消息嵌入换行符向日志输出注入任意内容，进而控制 root 写入 dump 目录文件的内容。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8

II. Public POCs for CVE-2026-54231

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III. Intelligence Information for CVE-2026-54231

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Vendor Advisories for CVE-2026-54231 (2)

Same Patch Batch · Red Hat · 2026-06-13 · 4 CVEs total

CVE-2026-542287.8 HIGHAbrt: toctou race condition in abrt-dbus setelement allows arbitrary file writes to dump d
CVE-2026-542307.0 HIGHAbrt: event handler scripts follow symlinks when writing output files, allowing arbitrary
CVE-2026-542297.0 HIGHAbrt: chownproblemdir succeeds during active post-create event processing due to inadequat

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 6
Same vendor: Red Hat
Same weakness: CWE-74

V. Comments for CVE-2026-54231

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