CVE-2026-47070

Exploit

EPSS 0.35%
Veröffentlicht 25.05.2026 14:00:46
Zuletzt bearbeitet 27.05.2026 13:55:50
Quelle 6b3ad84c-e1a6-4bf7-a703-f496b7
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HTTP/3 redirect handler leaks Authorization and Cookie headers to cross-origin redirect target in hackney

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.

Betroffene Produkte Warnungen 0 Metriken 3 CWE 1 Referenzen 7

NVD 1 VulnDex Vulnerability Enrichment 0

Daten sind bereitgestellt durch National Vulnerability Database (NVD)

Benoitc ≫ Hackney Version >= 3.1.1 < 4.0.1

Zu dieser CVE wurde keine Warnung gefunden.

EPSS Metriken
Typ	Quelle	Score	Percentile
EPSS	FIRST.org	0.35%	0.265

CVSS Metriken
Quelle	Base Score	Exploit Score	Impact Score	Vector String
nvd@nist.gov	6.1	2.8	2.7	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6b3ad84c-e1a6-4bf7-a703-f496b71e49db	6	0	0	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X