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PYSEC-2026-2073

HighCVSS 8.2 / 10
Published Jul 7, 2026·Last modified Jul 7, 2026
Affected Components(0)

No affected components available

Description

Impact

The Python package "zhmcclient" writes password-like properties in clear text into its HMC and API logs in the following cases:

  • The 'boot-ftp-password' and 'ssc-master-pw' properties when creating or updating a partition in DPM mode, in the zhmcclient API and HMC logs
  • The 'ssc-master-pw' and 'zaware-master-pw' properties when updating an LPAR in classic mode, in the zhmcclient API and HMC logs
  • The 'ssc-master-pw' and 'zaware-master-pw' properties when creating or updating an image activation profile in classic mode, in the zhmcclient API and HMC logs
  • The 'password' property when creating or updating an HMC user, in the zhmcclient API log
  • The 'bind-password' property when creating or updating an LDAP server definition, in the zhmcclient API and HMC logs

This issue affects only users of the zhmcclient package that have enabled the Python loggers named "zhmcclient.api" (for the API log) or "zhmcclient.hmc" (for the HMC log) and that use the functions listed above.

Patches

Has been fixed in zhmcclient version 1.18.1

Workarounds

Not applicable, since fix is available.

References

None

Risk Scores
Base Score
8.2

The vulnerability requires local access to the device to be exploited. It is easy for an attacker to exploit this vulnerability. An attacker needs high-level or administrative privileges. No user interaction is needed for the attacker to exploit this vulnerability. The vulnerability can affect other systems as well, not just the initial system. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.

Threat Intelligence
7.5

Exploitation activity has been observed. Apply available patches or mitigations urgently.

EPSS
0.14%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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High severity
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