Log in Start free

Vulnerability · Published Oct 6, 2026 · Assigned by GitHub_M

CVE-2026-106441Hydra logging configuration permits unsafe callable resolution

High 7.8

In plain English

A high-severity code injection in hydra from hydra-ecosystem. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 94.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Hydra is a framework for elegantly configuring complex applications. Prior to 1.3.6 and 1.4.0.dev9, Hydra passes Python logging configuration to logging.config.dictConfig() without applying Hydra's target policy to handler class values or formatter, filter, handler, queue, and listener factories. An attacker who controls Hydra logging configuration can therefore select an importable class or factory and cause it to be invoked with the application's privileges, even in versions where instantiate() is protected because the logging path does not use instantiate(). This issue is fixed in versions 1.3.6 and 1.4.0.dev9.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPIhydra-core1.3.6GHSA-c3wx-c55w-pxjq
PyPIhydra-core1.4.0.dev9GHSA-c3wx-c55w-pxjq
PyPIhydra-core1.3.6, 1.4.0.dev9PYSEC-2026-4221

Affected products (as reported)

VendorProductVersions
hydra-ecosystem hydra < 1.3.6>= 1.4.0.dev0, < 1.4.0.dev9

Weakness: CWE-94 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References