Pheditor: Incomplete command sanitization in terminal feature allows RCE via pipe operator, backtick substitution, an...

Date Jul 16, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product Composer ยท pheditor/pheditor
CVE CVE-2026-55578
High-risk advisory CVE-2026-55578

Summary

Pheditor: Incomplete command sanitization in terminal feature allows RCE via pipe operator, backtick substitution, and newline injection

Why it matters

GitHub has published a reviewed security advisory for pheditor/pheditor. Prioritize it with other application dependency updates.

Operator check

Check whether pheditor/pheditor is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.