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CVE-2025-48056— Hubble CLI vulnerable to character injection

Quick assessment

Affected
cilium hubble
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.

Hubble是Cilium开源的一个使用eBPF实现Kubernetes的网络、服务。 Hubble 1.17.2之前版本存在注入漏洞，该漏洞源于网络攻击者可能注入恶意控制字符影响终端输出完整性。

CVSS 5.3 · Medium EPSS 0.29% · P22

Possible ATT&CK Techniques 1 AI

T1562.001
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I. Basic Information for CVE-2025-48056

Vulnerability Information
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Vulnerability Title
Hubble CLI vulnerable to character injection
Source: CVE Program / CVE List V5
Vulnerability Description
Hubble is a fully distributed networking and security observability platform for cloud native workloads. Prior to version 1.17.2, a network attacker could inject malicious control characters into Hubble CLI terminal output, potentially leading to loss of integrity and manipulation of the output. This could be leveraged to conceal log entries, rewrite output, or even make the terminal temporarily unusable. Exploitation of this attack would require the victim to be monitoring Kafka traffic using Layer 7 Protocol Visibility at the time of the attack. The issue is patched in Hubble CLI v1.17.2. Hubble CLI users who are unable to upgrade can direct their Hubble flows to a log file and inspect the output within a text editor.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Hubble 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hubble是Cilium开源的一个使用eBPF实现Kubernetes的网络、服务。 Hubble 1.17.2之前版本存在注入漏洞，该漏洞源于网络攻击者可能注入恶意控制字符影响终端输出完整性。
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

Vendor Product Affected Versions CPE Subscribe
cilium hubble < 1.17.2 -

II. Public POCs for CVE-2025-48056

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III. Intelligence Information for CVE-2025-48056

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IV. Related Vulnerabilities

Same vendor: cilium
Same weakness: CWE-74