CVE-2026-85719 AsyncHttpClient - Information Disclosure

AsyncHttpClient 2.1.0 to 2.16.1 and 3.0.12 contain an information disclosure vulnerability caused by attaching Proxy-Authorization headers to requests without confirming HTTP proxy usage, letting attackers access proxy credentials via authenticated SOCKS proxy requests, exploit requires use of authenticated SOCKS proxy.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.36% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Information Disclosure
Impact
Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
17 September 2026
Updated
15 October 2026
Weakness
CWE-319

Vendor fix

Update to versions 2.16.1 or 3.0.12 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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