Arbitrary Command Injection Affecting cpython package, versions [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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- published25 Jan 2026
- disclosed20 Jan 2026
- creditUnknown
Introduced: 20 Jan 2026
NewCVE-2025-15367 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Arbitrary Command Injection via the poplib module. An attacker can manipulate mailbox state, such as deleting emails or reading metadata and specific email content, by injecting additional POP3 commands through malicious input containing control characters.
Workaround
This vulnerability can be mitigated by ensuring that no data passed to the poplib module contains newline or carriage return characters.