CVE-2021-27338: Faraday Edge before 3.7 allows XSS via the network/create/ page and its network name parameter.

Q: How do I fix CVE-2021-27338?

edge: upgrade to 3.7. Exact commands for each OS are on this page.

Q: Is CVE-2021-27338 being exploited?

CVE-2021-27338 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-27338 affect?

CVE-2021-27338 affects edge. Severity is medium (CVSS 5.4). Faraday Edge before 3.7 allows XSS via the network/create/ page and its network name parameter.

Q: How urgent is CVE-2021-27338?

Priority 32/100. No elevated risk signals yet.

Routine

MEDIUM 5.4UPGRADE

CVE-2021-27338 is a medium-severity flaw (CVSS 5.4) affecting edge. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Faraday Edge before 3.7 allows XSS via the network/create/ page and its network name parameter.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-07-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: faraday

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-07-20 12:15 UTCPublished CVE record published
2026-06-17 03:44 UTCUpdated Record last modified

faraday edge UPGRADE

Affected: < 3.7

Fixed in: 3.7

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy edge || rpm -q edge || edge --version

2. UPGRADE to 3.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade edge

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade edge

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-27338?

edge: upgrade to 3.7. Exact commands for each OS are on this page.

Is CVE-2021-27338 being exploited?

CVE-2021-27338 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-27338 affect?

CVE-2021-27338 affects edge. Severity is medium (CVSS 5.4). Faraday Edge before 3.7 allows XSS via the network/create/ page and its network name parameter.

How urgent is CVE-2021-27338?

Priority 32/100. No elevated risk signals yet.

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References

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