Security readout for executives and security teams
Plain-English summary
CVE-2022-23738 could let an authenticated GitHub Enterprise Server user expose private repository files through a public repository if an administrator visits a crafted URL. The issue is confidentiality-focused, not described as allowing code execution or data modification.
Executive priority
Treat as a priority upgrade for GHES environments containing sensitive private repositories. The issue is not described as remotely exploitable by anonymous attackers, but the potential data exposure justifies timely remediation.
Technical view
The CVE describes an improper cache key issue in GitHub Enterprise Server. Exploitation requires an authenticated user on the instance, ability to create a public repository, and administrator interaction. Fixed releases are 3.2.20, 3.3.15, 3.4.10, 3.5.7, and 3.6.3.
Likely exposure
Exposure is limited to organizations running affected GitHub Enterprise Server 3.2 through 3.6 branches before the listed fixed releases. GitHub.com and other products are not identified in the provided sources.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. Practical exploitation has meaningful prerequisites: local account access, public repository creation rights, and a site administrator visiting a crafted URL.
Researcher notes
The provided sources identify the vulnerability class, prerequisites, impact, affected branches, and fixed versions. They do not provide safe detection indicators, proof-of-concept details, or evidence of exploitation in the wild.
Mitigation direction
- Inventory all GHES appliances and record exact version and branch.
- Upgrade affected branches to 3.2.20, 3.3.15, 3.4.10, 3.5.7, 3.6.3, or later supported releases.
- Restrict public repository creation to trusted users until upgraded.
- Review GitHub release notes and current vendor guidance for branch-specific upgrade instructions.
Validation and detection
- Confirm whether GitHub Enterprise Server is deployed in the environment.
- Compare each appliance version against the fixed release for its branch.
- Review administrative policy for who can create public repositories.
- Check audit logs for unusual public repository activity and administrator URL interactions where available.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-23738 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N2.13.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.7MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://docs.github.com/en/enterprise-server%403.2/admin/release-notes#3.2.20CVE reference
- https://docs.github.com/en/enterprise-server%403.3/admin/release-notes#3.3.15CVE reference
- https://docs.github.com/en/enterprise-server%403.4/admin/release-notes#3.4.10CVE reference
- https://docs.github.com/en/enterprise-server%403.5/admin/release-notes#3.5.7CVE reference
- https://docs.github.com/en/enterprise-server%403.6/admin/release-notes#3.6.3CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.