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CVE-2021-32662

21
FAUCET Score

CVE-2021-32662 affects Backstage's TechDocs, specifically the @backstage/techdocs-common component prior to version 0.6.3. It allows an authenticated attacker to read sensitive files from the TechDocs build environment by manipulating the docs_dir path in mkdocs.yml. The vulnerability has a CVSS score of 6.5 (Medium) due to its low attack complexity and high confidentiality impact, though it requires prior access to modify documentation source code and the TechDocs backend API. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.6.3CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.28%
Probability of exploitation in next 30 days
EPSS Percentile
67.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0128 is in the 81st percentile among its peer group of 21,974 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: @backstage/techdocs-commonFixed in: 0.6.3

Vendor Advisories (1)

npmGHSA-pgf8-28gg-vpr6medium

Path traversal

Jun 4, 2021

References

github.com / backstage/backstage/commit/8cefadca04cbf01d0394b0cb1983247e5f1d6208
PatchThird Party Advisory
github.com / backstage/backstage/releases/tag/release-2021-05-27
Release NotesThird Party Advisory
github.com / backstage/backstage/security/advisories/GHSA-pgf8-28gg-vpr6
Third Party Advisory