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CVE-2022-39304

19
FAUCET Score

CVE-2022-39304 affects ghinstallation versions prior to 2.0.0, where a vulnerability exists in the ghinstallation transport's token refresh mechanism. When an installation token refresh failed, the debugging output inadvertently included the App's short-lived bearer JWT, which was then returned to clients. This medium-severity vulnerability (CVSS 4.7) has a local attack vector and high confidentiality impact, but requires high attack complexity and low privileges. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.0.0CPE matchmatch criteria
cpe:2.3:a:ghinstallation_project:ghinstallation:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.0MEDIUM

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:L

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
0.8
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 80th percentile among its peer group of 1,297 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/bradleyfalzon/ghinstallationFixed in: 2.0.0
redhatno patchvia redhat_api
Product: Red Hat OpenShift GitOpsFixed in: openshift-gitops-1/applicationset-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenShift GitOpsFixed in: openshift-gitops-1/argocd-rhel8

Vendor Advisories (2)

goGHSA-h4q8-96p6-jcgrmedium

ghinstallation returns app JWT in error responses

Dec 19, 2022
redhatCVE-2022-39304Moderate

ghinstallation: Leak of bearer JWT from http.RoundTripper response

Jul 21, 2022

References

docs.github.com / en/developers/apps/building-github-apps/authenticating-with-github-apps
Technical DescriptionThird Party Advisory
github.com / bradleyfalzon/ghinstallation/blob/24e56b3fb7669f209134a01eff731d7e2ef72a5c/transport.go
ExploitThird Party Advisory
github.com / bradleyfalzon/ghinstallation/commit/d24f14f8be70d94129d76026e8b0f4f9170c8c3e
PatchThird Party Advisory
github.com / bradleyfalzon/ghinstallation/security/advisories/GHSA-h4q8-96p6-jcgr
PatchThird Party Advisory