# CVE-2020-36193: PEAR Archive_Tar Improper Link Resolution Vulnerability

> CVE-2020-36193: PEAR Archive_Tar Improper Link Resolution Vulnerability. CVSS 7.5 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2020-36193
Last updated: 2025-10-21T23:35:29Z

- Published: 2021-01-18 19:24 UTC · Updated: 2025-10-21 23:35 UTC · Assigner: mitre
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS: 70.6%, 99th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-08-25, federal due date 2022-09-15, ransomware use: Unknown

## Description

Tar.php in Archive\_Tar through 1.4.11 allows write operations with Directory Traversal due to inadequate checking of symbolic links, a related issue to CVE-2020-28948.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- PEAR: Archive\_Tar

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2020-36193)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2020-36193)
- [https://github.com/pear/Archive\_Tar/commit/cde460582ff389404b5b3ccb59374e9b389de916](https://github.com/pear/Archive_Tar/commit/cde460582ff389404b5b3ccb59374e9b389de916)
- [https://lists.debian.org/debian-lts-announce/2021/01/msg00018.html](https://lists.debian.org/debian-lts-announce/2021/01/msg00018.html)
- [https://lists.debian.org/debian-lts-announce/2021/04/msg00007.html](https://lists.debian.org/debian-lts-announce/2021/04/msg00007.html)
- [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42GPGVVFTLJYAKRI75IVB5R45NYQGEUR/](https://lists.fedoraproject.org/archives/list/package-announce%2540lists.fedoraproject.org/message/42GPGVVFTLJYAKRI75IVB5R45NYQGEUR/)
- [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FOZNK4FIIV7FSFCJNNFWMJZTTV7NFJV2/](https://lists.fedoraproject.org/archives/list/package-announce%2540lists.fedoraproject.org/message/FOZNK4FIIV7FSFCJNNFWMJZTTV7NFJV2/)
- [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VJQQYDAOWHD6RDITDRPHFW7WY6BS3V5N/](https://lists.fedoraproject.org/archives/list/package-announce%2540lists.fedoraproject.org/message/VJQQYDAOWHD6RDITDRPHFW7WY6BS3V5N/)
- [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YKD5WEFA4WT6AVTMRAYBNXZNLWZHM7FH/](https://lists.fedoraproject.org/archives/list/package-announce%2540lists.fedoraproject.org/message/YKD5WEFA4WT6AVTMRAYBNXZNLWZHM7FH/)
- [https://security.gentoo.org/glsa/202101-23](https://security.gentoo.org/glsa/202101-23)
- [https://www.debian.org/security/2021/dsa-4894](https://www.debian.org/security/2021/dsa-4894)
- [https://www.drupal.org/sa-core-2021-001](https://www.drupal.org/sa-core-2021-001)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2020-36193 · Markdown: https://rewindex.com/cve/CVE-2020-36193.md · JSON: https://rewindex.com/api/v1/cves/CVE-2020-36193 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:13:42.019Z