GHSA-4fg7-f244-3j49
Suggest an improvement- Source
- https://github.com/advisories/GHSA-4fg7-f244-3j49
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-4fg7-f244-3j49/GHSA-4fg7-f244-3j49.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-4fg7-f244-3j49
- Aliases
-
- CVE-2026-46391
- Published
- 2026-05-19T14:44:46Z
- Modified
- 2026-09-10T03:50:45Z
- Severity
-
- 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N CVSS Calculator
- Summary
- HAX open-apis: Credential Theft via Server-Side Request Forgery (SSRF) in open-apis
- Details
-
Summary
Multiple functions conduct substring-only matching to validate hostnames to which basic authorization should be sent. An attacker can append the matched substrings to an attacker-controlled endpoint and capture authentication.
Details
api/services/website/cacheAddress.js, api/apps/haxcms/lib/JOSHelpers.js, and api/apps/haxcms/convert/elmslnToSite.js use similar logic to check for hard-coded site names. However, the logic only looks for the substring to be included in the user-controlled string, allowing an attacker to craft an API call and extract the credentials intended for the hard-coded domains.
PoC
Making API calls to an affected endpoint will result in credential theft. The attacker-controlled domains in these proofs of concept are
cloudflaredtunnels, protecting the production credentials from unencrypted exposure.cacheAddress.js:
elmslnToSite.js:
JOSHelpers.js:
Impact
This vulnerability allows internal data, including secrets, to be exfiltrated to an attacker-controlled domain. Credentials were confirmed with the maintainer to grant access to unreleased LMS content on subsequent systems; out of scope for PoC.
- Database specific
{ "cwe_ids": [ "CWE-183", "CWE-918" ], "github_reviewed": true, "github_reviewed_at": "2026-05-19T14:44:46Z", "nvd_published_at": "2026-06-05T19:16:33Z", "severity": "HIGH" }- References
Affected packages
npm / @haxtheweb/open-apis
Package
- Name
- @haxtheweb/open-apis
- View open source insights on deps.dev
- Purl
- pkg:npm/%40haxtheweb/open-apis