CVE-2026-111434
Quick assessment
Affected
openEuler iSulad
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.
openEuler iSulad 在 Linux 平台上存在由外部控制格式字符串引发的漏洞。 该漏洞与程序文件 相关。 受影响的 iSulad 版本为：2.1.6 及更早版本。 当 iSulad 守护进程通过 isula runtime（shim）执行容器生命周期操作（如创建、启动、执行、停止等）时，守护进程会通过管道读取 shim 进程的标准错误（stderr）输出，以显示错误信息。如果该缓冲区中包含格式说明符（如 %s、%x 或 %n），则可能触发格式字符串漏洞，进而导致信息泄露、拒绝服务（DoS），甚至引发任
Possible ATT&CK Techniques 3 AI
T1068.001 T1055.004 · Asynchronous Procedure Call T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-111434
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Use of Externally-Controlled format string vulnerability in openEuler iSulad on Linux.
This vulnerability is associated with program file src/daemon/modules/image/oci/oci_load.c.
This issue affects iSulad: through 2.1.6.
When the iSulad daemon performs container lifecycle operations (such as create, start, exec, stop, etc.) through the isula runtime (shim), the daemon reads the stderr output of the shim process via a pipe for error information display. If the buffer contains format specifiers such as %s, %x, or %n, it may trigger a format string vulnerability, potentially leading to information leakage, denial of service, or the risk of arbitrary writes.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用外部控制的格式字符串
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-111434
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-111434 (3)
Same Patch Batch · openEuler · 2026-11-12 · 4 CVEs total
| CVE-2026-111433 | 8.6 HIGH | openEuler iSulad 2.1.6 符号链接跟随漏洞 |
| CVE-2026-111435 | 7.4 HIGH | openEuler iSulad 2.1.6 相对路径遍历漏洞 |
| CVE-2026-111436 | 4.4 MEDIUM | openEuler iSulad 2.1.6 内存泄漏导致拒绝服务 |