CVE-2020-29529

mediumpriority · track · 31EPSS 0.028 · 86 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.82% (86th) EPSS

CVSS 5 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

HashiCorp go-slug up to 0.4.3 did not fully protect against directory traversal while unpacking tar archives, and protections could be bypassed with specific constructions of multiple symlinks. Fixed in 0.5.0.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USprimaryCWE-59USprimaryCWE-22USCWE-59US

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
hashicorp go-slug< 0.5.0nvdUScpe:2.3:a:hashicorp:go-slug:*:*:*:*:*:*:*:*
Go github.com/hashicorp/go-slug< 0.5.0osvUSpkg:golang/github.com/hashicorp/go-slug

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-2g5j-5x95-r6hrUnsafe tar unpacking in HashiCorp go-slug2023-02-06ghsa · osvUS
HashiCorp go-slug before 0.5.0 does not address attempts at directory traversal involving ../ and symlinks.
GO-2021-0094Directory traversal in github.com/hashicorp/go-slug2021-04-14vendor · osvUS
Protections against directory traversal during archive extraction can be bypassed by chaining multiple symbolic links within the archive. This allows a malicious attacker to cause files to be created outside of the target directory. Additionally if the attacker is able to read extracted files they may create symbolic links to arbitrary files on the system which the unpacker has permissions to read.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2020-12-03modified 2026-06-17

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+14741 more

references (15)

External citations — patches, advisories, analysis.

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