CVE-2026-107232 AsyncHttpClient - Authentication Bypass

AsyncHttpClient < 3.0.12 (3.x) and < 2.16.1 (2.x) contains an information disclosure caused by improper handling of proxy CONNECT rejection, letting attackers recover or relay credentials over plaintext proxy connections, exploit requires use of HTTP proxy with CONNECT rejection.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.21% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
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
7 October 2026
Updated
15 October 2026
Weakness
CWE-319

Vendor fix

Update to versions 3.0.12 or 2.16.1 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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