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vulnerability / NVI-00016103 / Revision 1

Pi Agent: Race condition in Pi auth.json writes could expose stored credentials

GitHub lists this reviewed advisory for @mariozechner/pi-coding-agent, @earendil-works/pi-coding-agent. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.

source listedactiveGHSA-r95r-rj6r-c39xCVE-2026-54327

This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.

01 / Meaning

Why it matters

Published affected context helps an owner decide what evidence to gather. This report has not examined your application.

CVSS

2.2 low

GitHub source severity; exploitability and local consequence require separate evidence.

As of · GitHub Advisory Database

02 / Applicability

The affected context

Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.

@mariozechner/pi-coding-agent

source listed
  • >= 0.28.0, <= 0.73.1

# Pi auth.json writes could briefly expose stored credentials to local users Pi stored API keys and OAuth credentials in `auth.json`. A race condition in the file write path could briefly create or rewrite this file with permissions derived from the process umask before tightening the file to owner-only permissions. ## Info The affected credential storage code wrote `auth.json` and then corrected the file mode in a separate operation. During the interval between those operations, a local user who could read and traverse the Pi agent configuration directory could potentially read the file before its permissions were restricted. The file can contain API keys, OAuth access tokens, and OAuth refresh tokens for configured providers. The affected behavior was present in the original `auth.json` credential storage implementation and thus affects both the original `@mariozechner/pi-coding-agent` package as well as `@earendil-works/pi-coding-agent`. ## Impact Exploitation requires local access to the same machine and read/traverse access to the victim's Pi agent configuration directory. Users whose `~/.pi/agent` directory is private to their account are less exposed. The main impact i

GitHub Advisory Database

@earendil-works/pi-coding-agent

source listed
  • >= 0.74.0, < 0.78.1

# Pi auth.json writes could briefly expose stored credentials to local users Pi stored API keys and OAuth credentials in `auth.json`. A race condition in the file write path could briefly create or rewrite this file with permissions derived from the process umask before tightening the file to owner-only permissions. ## Info The affected credential storage code wrote `auth.json` and then corrected the file mode in a separate operation. During the interval between those operations, a local user who could read and traverse the Pi agent configuration directory could potentially read the file before its permissions were restricted. The file can contain API keys, OAuth access tokens, and OAuth refresh tokens for configured providers. The affected behavior was present in the original `auth.json` credential storage implementation and thus affects both the original `@mariozechner/pi-coding-agent` package as well as `@earendil-works/pi-coding-agent`. ## Impact Exploitation requires local access to the same machine and read/traverse access to the victim's Pi agent configuration directory. Users whose `~/.pi/agent` directory is private to their account are less exposed. The main impact i

GitHub Advisory Database

03 / Response

What to do next

  1. investigate

    Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.

    Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database

A fixed release is not deployment evidence.

Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.

04 / Limits

What this report cannot establish

  • Customer inventory, deployment, reachability and exploitation have not been inspected.
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05 / Provenance

Sources you can inspect

Each assertion retains its source. Mirrored records may repeat one underlying publisher; additional links are not independent corroboration.

  1. GHSA-r95r-rj6r-c39x ↗

    GitHub Advisory Database · vendor advisory

    Observed . GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.

Public revision history

Only published revisions appear here. Routine fetches do not create a material-change event.

  1. Revision 1 ·

    First indexed by Null; source disclosure date is shown separately.

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The next step is private

Bring the question into your environment.

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