---
title: "CVE-2026-106442: Hydra - Remote Code Execution"
description: "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."
url: https://panop.io/threat-heartbeat/CVE-2026-106442/
---

# 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 ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-106442)

## 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](https://cwe.mitre.org/data/definitions/184.html)

## 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

- [https://nvd.nist.gov/vuln/detail/CVE-2026-106442](https://nvd.nist.gov/vuln/detail/CVE-2026-106442)
- [https://github.com/hydra-ecosystem/hydra/commit/2c82bbb3f39603b336cb852461739fdf7a38798a](https://github.com/hydra-ecosystem/hydra/commit/2c82bbb3f39603b336cb852461739fdf7a38798a)
- [https://github.com/hydra-ecosystem/hydra/commit/f462811117b5ecfd2ed652ed52d6b4e3771bd943](https://github.com/hydra-ecosystem/hydra/commit/f462811117b5ecfd2ed652ed52d6b4e3771bd943)
- [https://github.com/hydra-ecosystem/hydra/pull/3412](https://github.com/hydra-ecosystem/hydra/pull/3412)
- [https://github.com/hydra-ecosystem/hydra/pull/3413](https://github.com/hydra-ecosystem/hydra/pull/3413)
- [https://github.com/hydra-ecosystem/hydra/releases/tag/v1.3.6](https://github.com/hydra-ecosystem/hydra/releases/tag/v1.3.6)
- [https://github.com/hydra-ecosystem/hydra/security/advisories/GHSA-rqx7-p7vv-w7hr](https://github.com/hydra-ecosystem/hydra/security/advisories/GHSA-rqx7-p7vv-w7hr)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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