CVE-2022-1996: Authorization Bypass Through User-Controlled Key in GitHub repository emicklei/go-restful prior to v3.8.0.

This week

CRITICAL 9.1REMOTEUPGRADEMITIGATE

CVE-2022-1996 is a critical-severity flaw (CVSS 9.1) affecting go-restful, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Authorization Bypass Through User-Controlled Key in GitHub repository emicklei/go-restful prior to v3.8.0.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.1% (top 12%)
CISA exploited list	No
Weakness	CWE-639
Published	2022-06-08
Last modified	2026-06-17

Publisher (CNA): huntr.dev · Vendor: fedoraproject · go-restful project

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

Am I affected?

Timeline

2022-06-08 13:15 UTCPublished CVE record published
2026-06-17 04:23 UTCUpdated Record last modified

go-restful project go-restful UPGRADE

Affected: < 2.16.0 · >= 3.0.0 and < 3.8.0

Fixed in: 2.16.0, 3.8.0

Safe to downgrade to: a release before 3.0.0

1. Check installed version

apt-cache policy go-restful || rpm -q go-restful || go-restful --version

2. UPGRADE to 2.16.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade go-restful

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade go-restful

Note

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

3. If no update is available yet, DOWNGRADE to a release before 3.0.0 (Debian / Ubuntu)

apt-cache madison go-restful sudo apt install go-restful=<VERSION_BEFORE_3.0.0> sudo apt-mark hold go-restful

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list go-restful sudo dnf downgrade go-restful-<VERSION_BEFORE_3.0.0> sudo dnf versionlock add go-restful

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

fedoraproject fedora MITIGATE

Affected: 35 · 36

Fixed in: no fixed release known

Safe to downgrade to: a release before 35

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2022-1996?

go-restful: upgrade to 2.16.0, 3.8.0; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-1996 being exploited?

CVE-2022-1996 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-2022-1996 affect?

CVE-2022-1996 affects go-restful, fedora. Severity is critical (CVSS 9.1). Authorization Bypass Through User-Controlled Key in GitHub repository emicklei/go-restful prior to v3.8.0.

How urgent is CVE-2022-1996?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

GitHub vulnerabilities

References

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