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Vulnerability details: VCID-m381-y8gp-wbg8
Vulnerability ID VCID-m381-y8gp-wbg8
Aliases CVE-2018-20835
GHSA-x2mc-8fgj-3wmr
Summary Improper Input Validation in tar-fs
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-20 Improper Input Validation
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00178 https://api.first.org/data/v1/epss?cve=CVE-2018-20835
epss 0.00178 https://api.first.org/data/v1/epss?cve=CVE-2018-20835
epss 0.00178 https://api.first.org/data/v1/epss?cve=CVE-2018-20835
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-x2mc-8fgj-3wmr
cvssv3.1 7.5 https://github.com/mafintosh/tar-fs/commit/06672828e6fa29ac8551b1b6f36c852a9a3c58a2
generic_textual HIGH https://github.com/mafintosh/tar-fs/commit/06672828e6fa29ac8551b1b6f36c852a9a3c58a2
cvssv3.1 7.5 https://github.com/mafintosh/tar-fs/compare/d590fc7...a35ce2f
generic_textual HIGH https://github.com/mafintosh/tar-fs/compare/d590fc7...a35ce2f
cvssv3.1 7.5 https://hackerone.com/reports/344595
generic_textual HIGH https://hackerone.com/reports/344595
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-20835
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2018-20835
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2018-20835
https://github.com/mafintosh/tar-fs/commit/06672828e6fa29ac8551b1b6f36c852a9a3c58a2
https://github.com/mafintosh/tar-fs/compare/d590fc7...a35ce2f
https://hackerone.com/reports/344595
CVE-2018-20835 https://nvd.nist.gov/vuln/detail/CVE-2018-20835
GHSA-x2mc-8fgj-3wmr https://github.com/advisories/GHSA-x2mc-8fgj-3wmr
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/mafintosh/tar-fs/commit/06672828e6fa29ac8551b1b6f36c852a9a3c58a2
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/mafintosh/tar-fs/compare/d590fc7...a35ce2f
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://hackerone.com/reports/344595
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-20835
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.39198
EPSS Score 0.00178
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T20:25:15.743379+00:00 GHSA Importer Import https://github.com/advisories/GHSA-x2mc-8fgj-3wmr 38.6.0