Path traversal in code.cloudfoundry.org/archiver

published 2021-04-14 5 y ago modified 2026-06-17 4 mo ago also GHSA-32qh-8vg6-9g43 , GO-2020-0025 , EUVD-2022-7478

cvss: 9.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits: 0; none known

Due to improper path sanitization, archives containing relative file paths can cause files to be written (or overwritten) outside of the target directory.

Patch / fix

fixed in 3 links 1

go github.com/cloudfoundry/archiver 0.0.0-20180523222229-09b5706aa936
go code.cloudfoundry.org/archiver 0.0.0-20180523222229-09b5706aa936
code.cloudfoundry.org/archiver code.cloudfoundry.org/archiver/extractor 0.0.0-20180523222229-09b5706aa936

github.com/cloudfoundry/archiver@09b5706 commit

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-25046 updated 2026-11-01 cvss 9.1

cloudfoundry/archiver: improper path sanitization can result in files being extracted outside of the target directory

Red Hat Quay 3 quay/quay-builder-rhel8
affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 18 mo ago (2025-04-11)

Exploit prediction

1.29% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
NVD	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CNA	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
GitHub	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
go	github.com/cloudfoundry/archiver	<0.0.0-20180523222229-09b5706aa936	0.0.0-20180523222229-09b5706aa936
go	code.cloudfoundry.org/archiver	<0.0.0-20180523222229-09b5706aa936	0.0.0-20180523222229-09b5706aa936

Affected products

code.cloudfoundry.org/archiver code.cloudfoundry.org/archiver/extractor

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

github.com /cloudfoundry/archiver/commit/09b5706aa9367972c09144a450bb4523049ee840
web, patch, third-party-advisory
snyk.io /research/zip-slip-vulnerability
web, technical-description, third-party-advisory
pkg.go.dev /vuln/GO-2020-0025
web, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2018-25046
advisory
github.com /cloudfoundry/archiver
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary