CVE-2020-36193 — PEAR Archive_Tar Improper Link Resolution Vulnerability

CVE-2020-36193 (PEAR Archive_Tar) is in the CISA Known Exploited Vulnerabilities catalog since 2022-08-25. PEAR Archive_Tar Tar.php allows write operations with directory traversal due to inadequate checking of… See the required fix, due date and advisories.

Exploitation status

CVE-2020-36193 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 2022-08-25. PEAR Archive_Tar Tar.php allows write operations with directory traversal due to inadequate checking of symbolic links. PEAR stands for PHP Extension and Application Repository and it is an open-source framework and distribution system for reusable PHP components with known usage in third-party products such as Drupal Core and Red Hat Linux.

Advisory facts

Vendor or project
PEAR
Affected product
Archive_Tar
Added to CISA KEV
2022-08-25
US federal remediation due date
2022-09-15
Ransomware association
Unknown
EPSS score
—
Weakness (CWE)
CWE-22, CWE-59

Remediation: the required action

Apply updates per vendor instructions.

Wording published by CISA for this catalog entry. It is the baseline action, not a decision about your environment: whether this exposure matters for you depends on where the affected component runs, what it is exposed to and who owns it.

From advisory to a decision you can defend

A catalog entry tells you a vulnerability is being exploited somewhere. It does not tell you whether it matters in your estate, who owns the fix, or what evidence an auditor will ask for later. That is the work VulnTrek does: it takes findings from the tools you already run, decides which exposure actually matters, routes it to an owner, keeps remediation human-approved and retains the lineage as evidence.

Sourced from public upstream advisories (CISA KEV, ENISA EUVD, vendor PSIRTs) mirrored daily. Informational only — not a remediation decision, not legal advice, and the absence of a record is not evidence of safety.