GitHub Advisoryadvisory · npm
GHSA-vhjm-w67q-g75c @hapi/wreck leaks sensitive `Proxy-Authorization` header across cross-hostname redirects
MEDIUM
Official page ↗
- Aliases
- CVE-2026-44979
- Ecosystem
- npm
- Packages
- @hapi/wreck
- Severity
- Moderate
- CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
- Weaknesses
- CWE-200, CWE-522
- Reviewed
- 2026-05-27
Affected packages
• npm @hapi/wreck: < 18.1.1 → fixed in 18.1.1
Description
Impact
When `@hapi/wreck` follows a 3xx redirect to a different hostname, only the `Authorization` and `Cookie` headers are stripped. The standard credential header `Proxy-Authorization` is forwarded intact to the redirect target, potentially exposing forward-proxy credentials to a host outside the original trust boundary.
Redirect following is opt-in. The redirects option defaults to false (no redirections followed), so applications are only affected if they have explicitly set redirects to a positive integer on the request or via `Wreck.defaults({ redirects: ... })`.
Patches
`@hapi/wreck` 18.1.1 extends the cross-hostname strip set to include `proxy-authorization`. Upgrade to 18.1.1 or later.
Workarounds
If upgrading is not immediately possible:
• Leave redirects at its default (`false`) — applications that never enable redirect following are not affected.
• If redirects are required, set redirects: 0 when calling endpoints with sensitive headers, or strip Proxy-Authorization from the headers before issuing the request.
• Use the `beforeRedirect` hook to manually strip proxy-authorization (and any other sensitive application headers) when `redirectOptions` targets a different hostname than the original request.
Resources
• Related: CVE-2024-30260 / GHSA-3787-6prv-h9w3 (undici)
• RFC 7235 §4.4 — Proxy-Authorization
Related
Alias · CVE (1)
- CVE-2026-44979 @hapi/wreck is an HTTP client utility. vulnerability