CVE-2025-49843 conda-smithy Has Incorrect Default File Permissions
An attacker in a shared environment can read sensitive configuration files due to overly permissive default file permissions in conda-smithy.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-49843?
CVE-2025-49843 is a low-severity vulnerability in conda-forge conda-smithy, published on 17 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-276
Which versions are affected by CVE-2025-49843?
How do I fix CVE-2025-49843?
No fix has been published for CVE-2025-49843 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-49843 being exploited?
There is no known exploitation of CVE-2025-49843 in the wild and no public exploit code.
Sources
Also known as GHSA-h9v8-rrqg-3m95.