CVE-2023-22836: In cases where a multi-tenant stack user is operating Foundry’s Linter service, and the user changes a group n

Q: How do I fix CVE-2023-22836?

guardian: upgrade to 2.278.0. Exact commands for each OS are on this page.

Q: Is CVE-2023-22836 being exploited?

CVE-2023-22836 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-2023-22836 affect?

CVE-2023-22836 affects guardian. Severity is low (CVSS 3.5). In cases where a multi-tenant stack user is operating Foundry’s Linter service, and the user changes a group name from the default value, the renamed value may be visible to the rest of the stack’s tenants.

Q: How urgent is CVE-2023-22836?

Priority 17/100. No elevated risk signals yet.

Routine

LOW 3.5UPGRADE

CVE-2023-22836 is a low-severity flaw (CVSS 3.5) affecting guardian. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In cases where a multi-tenant stack user is operating Foundry’s Linter service, and the user changes a group name from the default value, the renamed value may be visible to the rest of the stack’s tenants.

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	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-862
Published	2024-01-29
Last modified	2026-06-17

Publisher (CNA): Palantir Technologies · Vendor: guardiansoft

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

Am I affected?

Timeline

2024-01-29 19:15 UTCPublished CVE record published
2026-06-17 05:36 UTCUpdated Record last modified

guardiansoft guardian UPGRADE

Affected: < 2.278.0

Fixed in: 2.278.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 2.278.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade guardian

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-2023-22836?

guardian: upgrade to 2.278.0. Exact commands for each OS are on this page.

Is CVE-2023-22836 being exploited?

CVE-2023-22836 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-2023-22836 affect?

CVE-2023-22836 affects guardian. Severity is low (CVSS 3.5). In cases where a multi-tenant stack user is operating Foundry’s Linter service, and the user changes a group name from the default value, the renamed value may be visible to the rest of the stack’s tenants.

How urgent is CVE-2023-22836?

Priority 17/100. No elevated risk signals yet.

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References

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