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HIGH8.1

PYSEC-2026-1295

DIRAC: Unauthorized users can read proxy contents during generation

Quick fix

PYSEC-2026-1295 — dirac: upgrade to the fixed version with the command below.

pip install --upgrade 'dirac>=8.0.41'

Details

### Impact

During the proxy generation process (e.g., when using `dirac-proxy-init`) it is possible for unauthorized users on the same machine to gain read access to the proxy. This allows the user to then perform any action that is possible with the original proxy.

This vulnerability only exists for a short period of time (sub-millsecond) during the generation process.

### Patches

_Has the problem been patched? What versions should users upgrade to?_

### Workarounds

Setting the `X509_USER_PROXY` environment variable to a path that is inside a directory that is only readable to the current user avoids the potential risk. After the file has been written it can be safely copied to the standard location (`/tmp/x509up_uNNNN`).

### References

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/dirac
Introduced in: 0Fixed in: 8.0.41
Fixpip install --upgrade 'dirac>=8.0.41'

References