External Control of File Name or Path Affecting py-rattler package, versions [,0.24.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published10 Jul 2026
- disclosed9 Jul 2026
- creditUnknown
Introduced: 9 Jul 2026
CVE-2026-53956 (opens in a new tab)How to fix?
Upgrade py-rattler to version 0.24.0 or higher.
Overview
py-rattler is an A blazing fast library to work with the conda ecosystem
Affected versions of this package are vulnerable to External Control of File Name or Path via the build string in package metadata during cache materialization. An attacker can cause files to be written outside the intended cache directory by supplying malicious package metadata containing path traversal components. This is only exploitable if a malicious or untrusted conda channel is used.