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PYSEC-2026-1449

MediumCVSS 5.9 / 10
Published Jul 7, 2026·Last modified Jul 7, 2026
Affected Components(0)

No affected components available

Description

Thanks, @thunze for reporting this!

hermes subcommands take arbitrary options under the -O argument. These have been logged in raw form since https://github.com/softwarepub/hermes/commit/7f64f102e916c76dc44404b77ab2a80f5a4e59b1 in: https://github.com/softwarepub/hermes/blob/3a92f42b2b976fdbc2c49a621de6d665364a7cee/src/hermes/commands/cli.py#L66

If users provide sensitive data such as API tokens (e.g., via hermes deposit -O invenio_rdm.auth_token SECRET), these are written to the log file in plain text, making them available to whoever can access the log file.

Impact

As currently, hermes.log is not yet uploaded automatically as an artifact in CI, this vuln impacts:

  • local users working on shared access computers, where logs may be written to a commonly accessible file system
  • CI users whose CI logs are accessible to others, e.g., through group or organization rights

Potentially, if the changes merged from https://github.com/softwarepub/ci-templates/pull/13 are merged into ci-templates via https://github.com/softwarepub/ci-templates/pull/14, this would automate the disclosure of Invenio auth tokens at least for all CI runs against Invenio instances!

Patches

This has been patched in hermes 0.9.1 by masking all values passed using -O.

Workarounds

Upgrade to hermes >= 0.9.1.

Risk Scores
Base Score
5.9

The vulnerability requires local access to the device to be exploited. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. The attacker needs the user to perform some action, like clicking a link. The vulnerability can affect other systems as well, not just the initial system. There is a high impact on the integrity of the data.

Threat Intelligence
5.4

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.15%

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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Medium severity
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