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CVE-2026-106441GHSA-C3WX-C55W-PXJQPYSEC-2026-4221

Hydra logging configuration permits unsafe callable resolution

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.3.6, 1.4.0.dev9
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • hydra-ecosystem hydra

    fixed in 1.3.6; From 1.4.0.dev0 · fixed in 1.4.0.dev9

  • hydra-corePyPI

    fixed in 1.3.6

  • hydra-corePyPI

    From 1.4.0.dev0 · fixed in 1.4.0.dev9

  • hydra-corePyPI

    fixed in 1.3.6; From 1.4.0.dev0 · fixed in 1.4.0.dev9

References 4

GitHub · hydra-ecosystem/hydra