pgAdmin 4: Import/Export Data query export runs a command through a backslash in a double-quoted identifier

Özet

Türkçe özeti henüz hazır değil; şimdilik kaynağın kendi açıklamasını gösteriyoruz.

pgAdmin 4's Import/Export Data tool wraps a user's query export in a psql \copy (...) TO command and checks that the query's parentheses are balanced so that nothing can escape the wrapper. The check rejected a backslash inside a single-quoted string, but not inside a double-quoted identifier, where it treated the next double quote as closing the identifier. psql's \copy parser applies the connection's escape character to whichever quote opened a token, so with standard_conforming_strings off a backslash-escaped double quote does not close the identifier. pgAdmin's and psql's view of the quoting then diverged, a closing parenthesis hidden from the check ended the \copy (...) wrapper, and a following TO PROGRAM clause was executed by psql on the pgAdmin host, as the operating-system account running pgAdmin, before the server rejected the statement. An ordinary database role can turn standard_conforming_strings off for itself, and the Import/Export Data permission is granted to non-administrators by default.

This is a bypass of the fix for CVE-2026-17566. The fix rejects any backslash inside a double-quoted identifier, as was already done for single-quoted strings, since its meaning depends on a server setting that cannot be known reliably when the query is validated.

This issue affects pgAdmin 4: before 9.19.

Etkilenen sürümler1 yazılım

Kaynaklar4 kaynak

• CVE.org kaydı
• NVD kaydı
• github.com/…ommit/9be31a019f780647fb689c458408c8803263c812 Yama
• github.com/pgadmin-org/pgadmin4/issues/10663 Üçüncü taraf

Kayıt geçmişi

1. 30 Eki 2026 22:55Yayımlandı

İlgili açıklar

• 6,5 CVE-2026-116252pgAdmin 4: Materialized view refresh redirects its connection through a crafted database name
• 4,2 CVE-2026-116251pgAdmin 4: A user's other sessions survive a change of their password
• 8,4 CVE-2026-116249pgAdmin 4: Connection file paths and parameter keys escape the user's storage directory
• 6,5 CVE-2026-116250pgAdmin 4: Files opened in a storage directory follow a symbolic link, hard link or FIFO planted after the containment check
• 6,8 CVE-2026-116248pgAdmin 4: Non-administrators can share a server with every user
• 6,5 CVE-2026-116246pgAdmin 4: Server passwords are left in pgAdmin's process environment