CVE detail
CVE-2026-47070
Sensitive Data Exposure vulnerability in benoitc hackney allows Retrieve Embedded Sensitive Data. The HTTP/3 redirect handler in src/hackney_h3.erl passes the original request headers unchanged to the redirect target without performing any cross-origin check. When a client issues an HTTP/3 request with follow_redirect enabled and includes Authorization or Cookie headers, a server responding with a 3xx redirect to a different host will cause the client to forward those credentials verbatim to the new origin. The main hackney.erl module has maybe_strip_auth_on_redirect/2 (guarded by the location_trusted option) to address CVE-2018-1000007, but hackney_h3.erl is missing this protection entirely. This issue affects hackney: from 3.1.1 before 4.0.1.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 16.1 · diversity 11.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
4 source links · newest first
No excerpt available.
Exploitosv.devMay 25, 2026, 3:16 PMNo excerpt available.
Exploitgithub.comMay 25, 2026, 3:16 PMNo excerpt available.
Exploitgithub.comMay 25, 2026, 3:16 PM- https://cna.erlef.org/cves/CVE-2026-47070.htmlcna.erlef.org
No excerpt available.
Vendor Advisorycna.erlef.orgMay 25, 2026, 3:16 PM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
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