PyPI PACKAGE

prefect 2.20.27

Warn

PkgFire would install this release with a warning.·Checked 6 hours ago·Published 23 October 2026

pypi.org

Why

  • warnVulnerability

    PYSEC-2026-2261 (fixed in 3.6.22)

  • warnVulnerability

    Prefect Git Argument Injection in GitRepository Pull Steps (fixed in 3.6.25.dev7)

  • warnVulnerability

    Prefect Auth Bypass via endswith() Health Check Exemption (fixed in 3.6.22)

  • warnVulnerability

    Prefect has an Argument Injection issue

  • warnVulnerability

    Prefect Unauthenticated Event Injection via /api/events/in WebSocket (fixed in 3.6.14)

  • warnVulnerability

    Prefect SSRF Bypass via DNS Rebinding in validate_restricted_url (fixed in 3.6.28.dev2)

  • warnVulnerability

    Prefect Auth Bypass via endswith() Health Check Exemption (fixed in 3.6.22)

  • warnVulnerability

    Prefect has an Authentication Middleware Bypass when URL paths are appended with 'health' or 'ready' (fixed in 3.6.22.dev7)

  • warnVulnerability

    Prefect has an Argument Injection issue

  • warnVulnerability

    Prefect Unauthenticated Event Injection via /api/events/in WebSocket (fixed in 3.6.14)

Provenance

A registry signature proves the registry served these bytes unaltered. Build provenance proves which workflow built them from which commit; a stolen publishing token can fake the first but not the second.

Signature
Not signed
Build provenance
Attested

What the code does

On its own this is weak signal: plenty of honest libraries read files or talk to the network. What PkgFire watches is a release gaining something the one before it did not.

Code reading

PkgFire's own reading of the files: what the code can do.

  • code-credentialssrc/prefect/filesystems.py
  • code-encoded-blobsrc/prefect/server/ui/assets/index-BjFilUfY.js
  • code-evalsrc/prefect/flows.py, src/prefect/server/api/events.py, src/prefect/server/ui/assets/index-BjFilUfY.js, src/prefect/utilities/callables.py, src/prefect/utilities/importtools.py
  • code-execsrc/prefect/cli/dev.py, src/prefect/cli/shell.py, src/prefect/deployments/base.py, src/prefect/deployments/steps/core.py, src/prefect/deployments/steps/utility.py
  • code-networksrc/prefect/_internal/schemas/validators.py, src/prefect/_vendor/fastapi/openapi/utils.py, src/prefect/_vendor/starlette/authentication.py, src/prefect/_vendor/starlette/datastructures.py, src/prefect/_vendor/starlette/formparsers.py

Source patterns

Patterns found in the source, including those malware is known to use.

  • capability-filesystem-delete
  • capability-filesystem-read
  • capability-filesystem-write-executable
  • capability-network-download
  • capability-network-outbound
  • capability-process-schedule
  • capability-process-spawn
  • threat-process-download-exec
  • threat-runtime-dynamic-loader
  • threat-runtime-environment-read
  • threat-runtime-obfuscation
  • threat-runtime-obfuscation-base64exec
  • threat-runtime-obfuscation-unicode

Other checked releases

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