CVE-2022-40274: Gridea version 0.9.3 allows an external attacker to execute arbitrary code remotely on any client attempting t

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HIGH 7.8DOWNGRADE

CVE-2022-40274 is a high-severity flaw (CVSS 7.8) affecting gridea. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Gridea version 0.9.3 allows an external attacker to execute arbitrary code remotely on any client attempting to view a malicious markdown file through Gridea. This is possible because the application has the 'nodeIntegration' option enabled.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-94
Published	2022-09-30
Last modified	2026-06-17

Publisher (CNA): Fluid Attacks · Vendor: gridea

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

Am I affected?

Timeline

2022-09-30 17:15 UTCPublished CVE record published
2026-06-17 05:01 UTCUpdated Record last modified

gridea gridea DOWNGRADE

Affected: 0.9.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.9.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.9.3 (Debian / Ubuntu)

apt-cache madison gridea sudo apt install gridea=<VERSION_BEFORE_0.9.3> sudo apt-mark hold gridea

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

dnf --showduplicates list gridea sudo dnf downgrade gridea-<VERSION_BEFORE_0.9.3> sudo dnf versionlock add gridea

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-2022-40274?

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

Is CVE-2022-40274 being exploited?

CVE-2022-40274 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-2022-40274 affect?

CVE-2022-40274 affects gridea. Severity is high (CVSS 7.8). Gridea version 0.9.3 allows an external attacker to execute arbitrary code remotely on any client attempting to view a malicious markdown file through Gridea. This is possible because the application has the 'nodeIntegration' option enabled

How urgent is CVE-2022-40274?

Priority 42/100. High severity; Public exploit reference

References

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