CVE-2017-1000026

Chef Software's mixlib-archive versions 0.3.0 and older are vulnerable to a directory traversal attack allowing attackers to overwrite arbitrary files by using ".." in tar archive entries

Published: 2017-07-17 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-1000026 is rated Moderate Risk (58.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.90%). EPSS rose +1.70% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-1000026

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.20% 1.90% +1.70%
2 2025-03-30 1.67% 0.20% -1.48%
3 2025-03-29 — 1.67% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-1000026

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2017-1000026

GitHub Security Advisory for CVE-2017-1000026

GHSA-98wx-cw86-c97x · Severity: high · Ecosystem: rubygems — mixlib-archive Path Traversal vulnerability

OS Trackers for CVE-2017-1000026

vendor priority summary link
debian not yet assigned CVE-2017-1000026 not yet assigned priority: Debian including 1 source packages (ruby-mixlib-archive), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-1000026
ubuntu medium CVE-2017-1000026 medium priority: Ubuntu including 1 source packages (ruby-mixlib-archive), 8 status rows across 8 suites (artful, bionic, cosmic, trusty, upstream, xenial, yakkety, zesty): DNE 3, ignored 2, not-affected 2, released 1. https://ubuntu.com/security/CVE-2017-1000026

Affected software / configurations for CVE-2017-1000026

Vendor Product Version Raw CPE
progress mixlib-archive <= 0.3.0 cpe:2.3:a:progress:mixlib-archive:*:*:*:*:*:*:*:*

References for CVE-2017-1000026

URL Tags
https://github.com/chef/mixlib-archive/blob/master/CHANGELOG.md Release Notes Third Party Advisory
cvelogic Threat Intelligence