CVE-2022-4877: A vulnerability has been found in snoyberg keter up to 1.8.1 and classified as problematic

Q: How do I fix CVE-2022-4877?

keter: upgrade to 1.8.2. Exact commands for each OS are on this page.

Q: Is CVE-2022-4877 being exploited?

CVE-2022-4877 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-2022-4877 affect?

CVE-2022-4877 affects keter. Severity is low (CVSS 3.5). A vulnerability has been found in snoyberg keter up to 1.8.1 and classified as problematic. This vulnerability affects unknown code of the file Keter/Proxy.hs. The manipulation of the argument host leads to cross site scripting. The attack

Q: How urgent is CVE-2022-4877?

Priority 24/100. No elevated risk signals yet.

Routine

LOW 3.5UPGRADE

CVE-2022-4877 is a low-severity flaw (CVSS 3.5) affecting keter. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability has been found in snoyberg keter up to 1.8.1 and classified as problematic. This vulnerability affects unknown code of the file Keter/Proxy.hs. The manipulation of the argument host leads to cross site scripting. The attack can be initiated remotely. Upgrading to version 1.8.2 is able to address this issue. The name of the patch is d41f3697926b231782a3ad8050f5af1ce5cc40b7. It is recommended to upgrade the affected component. The i

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	3.5 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.6% (top 53%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-01-05
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: keter project

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

Am I affected?

Timeline

2023-01-05 10:15 UTCPublished CVE record published
2026-06-17 05:22 UTCUpdated Record last modified

keter project keter UPGRADE

Affected: < 1.8.2

Fixed in: 1.8.2

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.8.2 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade keter

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-2022-4877?

keter: upgrade to 1.8.2. Exact commands for each OS are on this page.

Is CVE-2022-4877 being exploited?

CVE-2022-4877 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-2022-4877 affect?

CVE-2022-4877 affects keter. Severity is low (CVSS 3.5). A vulnerability has been found in snoyberg keter up to 1.8.1 and classified as problematic. This vulnerability affects unknown code of the file Keter/Proxy.hs. The manipulation of the argument host leads to cross site scripting. The attack

How urgent is CVE-2022-4877?

Priority 24/100. No elevated risk signals yet.

References

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