CVE-2026-106442 Hydra - Remote Code Execution

Hydra 1.3.4 to 1.3.6 and 1.4.0.dev9 contain a remote code execution caused by incomplete target blacklist checks in instantiate() allowing bypass via wrappers and deferred calls, letting attackers execute code with application privileges, exploit requires untrusted configuration instantiation.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.16% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
6 October 2026
Updated
15 October 2026
Weakness
CWE-184

Vendor fix

Upgrade to versions 1.3.6 or 1.4.0.dev9 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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