CVE-2022-47717: Last Yard 22.09.8-1 is vulnerable to Cross-origin resource sharing (CORS).

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2022-47717 is a high-severity flaw (CVSS 7.5) affecting last yard. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Last Yard 22.09.8-1 is vulnerable to Cross-origin resource sharing (CORS).

Why this priority

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

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-942
Published	2023-02-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: lastyard

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

Am I affected?

Timeline

2023-02-01 14:15 UTCPublished CVE record published
2026-06-17 05:14 UTCUpdated Record last modified

lastyard last yard DOWNGRADE

Affected: 22.09.8-1

Fixed in: no fixed release known

Safe to downgrade to: a release before 22.09.8-1

1. Check installed version

apt-cache policy last-yard || rpm -q last-yard || last-yard --version

2. No fixed release: DOWNGRADE to a release before 22.09.8-1 (Debian / Ubuntu)

apt-cache madison last-yard sudo apt install last-yard=<VERSION_BEFORE_22.09.8-1> sudo apt-mark hold last-yard

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list last-yard sudo dnf downgrade last-yard-<VERSION_BEFORE_22.09.8-1> sudo dnf versionlock add last-yard

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.

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-2022-47717?

last yard: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-47717 being exploited?

CVE-2022-47717 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-2022-47717 affect?

CVE-2022-47717 affects last yard. Severity is high (CVSS 7.5). Last Yard 22.09.8-1 is vulnerable to Cross-origin resource sharing (CORS).

How urgent is CVE-2022-47717?

Priority 50/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-47715 MEDIUM 5.3 DOWNGRADE In Last Yard 22.09.8-1, the cookie can be stolen via via unencrypted traffic.
CVE-2022-47714 CRITICAL 9.8 DOWNGRADE Last Yard 22.09.8-1 does not enforce HSTS headers

References

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