Symlink Attack Affecting banks package, versions [,2.5.1)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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Test your applications- Snyk IDSNYK-PYTHON-BANKS-20849558
- published13 Oct 2026
- disclosed8 Oct 2026
- creditjankesec
Introduced: 8 Oct 2026
NewCVE-2026-107716 (opens in a new tab)How to fix?
Upgrade banks to version 2.5.1 or higher.
Overview
banks is an A prompt programming language
Affected versions of this package are vulnerable to Symlink Attack via the _resolve_prompt_file function in src/banks/registries/directory.py, where prompt file paths are resolved by following symbolic links before writing content. An attacker with local access who can place a symlink inside the prompt registry directory can cause the registry to write arbitrary content to any file the process has permission to write, leading to privilege escalation or data corruption.