CVE Catalog

CVE-2026-7818

High
Published: Translated: NVD NIST

Summary

In pgAdmin 4 FileBackedSessionManager, there is a vulnerability to deserialization of untrusted data, which can lead to remote code execution at the operating system level. This issue arises from the lack of proper integrity checks before deserializing session file contents.

Risk Assessment

The organization may face serious security threats, including remote code execution by authenticated users with access to the sessions directory. This could lead to system takeover.

Recommendation

It is recommended to upgrade pgAdmin 4 to version 9.15 or later to implement session integrity fixes and avoid risks associated with deserialization of untrusted data.

Other vulnerabilities in pgAdmin 4

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Original NVD description (English source)

Deserialization of untrusted data (CWE-502) in pgAdmin 4 FileBackedSessionManager. The session manager performed unsafe deserialization of session-file contents (using Python's standard object-serialization module) before performing any HMAC integrity check. Any file dropped into the sessions directory was deserialized unconditionally. An authenticated user with write access to the sessions directory (whether by misconfiguration or in combination with another path-traversal flaw) could plant a crafted serialized payload to achieve operating-system level remote code execution under the pgAdmin process identity. Fix prepends a 64-byte hex SHA-256 HMAC over the session body, computed with SECRET_KEY, and verifies it via hmac.compare_digest before any deserialization. The check is raised (rather than asserted) on empty SECRET_KEY so it is not stripped under -O. This issue affects pgAdmin 4: before 9.15.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS