How severe is CVE-2022-39304?

CVE-2022-39304 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability low.

Is CVE-2022-39304 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-39304?

CVE-2022-39304 affects Ghinstallation Project Ghinstallation. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-39304?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-39304 published?

CVE-2022-39304 was published on 2022-12-20 and last updated on 2026-06-17.

CVE-2022-39304

CVE-2022-39304 is a medium-severity vulnerability in Ghinstallation Project Ghinstallation with a CVSS 3.x base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-209.

Key facts

Severity: Medium (CVSS 3.x base score 5.0)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-209
Affected product: Ghinstallation Project Ghinstallation
Published: 2022-12-20
Last modified: 2026-06-17

Description

ghinstallation provides transport, which implements http.RoundTripper to provide authentication as an installation for GitHub Apps. In ghinstallation version 1, when the request to refresh an installation token failed, the HTTP request and response would be returned for debugging. The request contained the bearer JWT for the App, and was returned back to clients. This token is short lived (10 minute maximum). This issue has been patched and is available in version 2.0.0.

Frequently asked questions

What is CVE-2022-39304?: ghinstallation provides transport, which implements http.RoundTripper to provide authentication as an installation for GitHub Apps. In ghinstallation version 1, when the request to refresh an installation token failed, the HTTP request and response would be returned for debugging. The request contained the bearer JWT for the App, and was returned back to clients. This token is short lived (10 minute maximum). This issue has been patched and is available in version 2.0.0.
How severe is CVE-2022-39304?: CVE-2022-39304 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability low.
Is CVE-2022-39304 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-39304?: CVE-2022-39304 affects Ghinstallation Project Ghinstallation. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-39304?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-39304 published?: CVE-2022-39304 was published on 2022-12-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ghinstallation_project:ghinstallation:*:*:*:*:*:*:*:*

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