{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-17347 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-17347 is a high-severity command injection vulnerability in pgadmin.org pgAdmin 4, published on 31 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-17347 and fix it if it is affected.\n\nWhat it is: CVE-2026-17347 is a high-severity command injection vulnerability in pgadmin.org pgAdmin 4, published on 31 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-17347 in the wild and no public exploit code.\n\nAffected product: pgadmin.org pgAdmin 4. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-17347/ (Markdown: https://insights.sbomify.com/CVE-2026-17347/index.md)","id":"CVE-2026-17347","markdown":"https://insights.sbomify.com/CVE-2026-17347/index.md","name":"CVE-2026-17347","record":{"aliases":["GHSA-f649-fjv9-qgcg"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"PostgreSQL management tool","requires_auth":"low_privilege","summary":"Authenticated users can execute arbitrary OS commands via shell metacharacters in usernames when the MASTER_PASSWORD_HOOK feature is enabled.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"PostgreSQL","cpe":[{"product":"pgadmin_4","vendor":"pgadmin"}],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-88","name":"Improper Neutralization of Argument Delimiters in a Command"},{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"The MASTER_PASSWORD_HOOK setting, introduced in pgAdmin 4 7.2, lets an administrator configure an external command that returns a per-user encryption key, with %u in the configured string replaced by the current user's name. The previous implementation substituted the username directly into the command string and executed the result with subprocess.Popen(..., shell=True). Because the username can originate from an external authentication source (OAuth/OIDC claims, Kerberos, webserver auth) rather than a value pgAdmin fully controls, a username containing shell metacharacters (';', '$()', backticks, pipes, '\u0026\u0026', newlines) allowed an authenticated user to execute arbitrary commands as the pgAdmin service account in any deployment where the configured hook string uses %u.\n\nFix tokenises the trusted, administrator-configured hook string into an argument vector first (using shlex in POSIX-quoting mode, with backslash-escaping disabled so Windows-style paths are not mis-parsed), substitutes the untrusted username into the individual argv elements, and executes with shell=False. The username is therefore always confined to a single argv element; any shell metacharacters it contains are inert. Administrators whose MASTER_PASSWORD_HOOK previously relied on shell features (pipes, redirection, environment-variable expansion, globbing) within the hook string itself must move that logic into the invoked script, since it is no longer interpreted by a shell.\n\nThis issue affects pgAdmin 4: from 7.2 before 9.17.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"pgAdmin 4: OS command injection in MASTER_PASSWORD_HOOK via untrusted username substitution","id":"CVE-2026-17347","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Missing authorization in pgAdmin 4","id":"CVE-2026-17348"},"packages":[],"prev":{"headline":"SQL injection in pgAdmin 4","id":"CVE-2026-17346"},"products":["pgAdmin 4"],"published":"2026-07-31","related":[{"cvss_score":9.9,"headline":"pgAdmin 4: Remote Code Execution in Query Tool and Cloud Deployment","id":"CVE-2025-2945","kev_date_added":null,"published":"2025-04-03"},{"cvss_score":9.9,"headline":"OAuth2 client id and secret exposed through the web browser in pgAdmin 4","id":"CVE-2024-9014","kev_date_added":null,"published":"2024-09-23"},{"cvss_score":9.5,"headline":"Deserialization in pgAdmin 4","id":"CVE-2026-12046","kev_date_added":null,"published":"2026-06-18"},{"cvss_score":9.4,"headline":"SQL injection in pgAdmin 4","id":"CVE-2026-17351","kev_date_added":null,"published":"2026-07-31"},{"cvss_score":9.4,"headline":"Command injection in pgAdmin 4","id":"CVE-2026-17566","kev_date_added":null,"published":"2026-07-31"},{"cvss_score":9.4,"headline":"pgAdmin 4: AI Assistant read-only transaction bypass allows unauthorised writes and remote code execution","id":"CVE-2026-12045","kev_date_added":null,"published":"2026-06-18"},{"cvss_score":9.4,"headline":"pgAdmin 4: Cross-user data access and shared-server privilege escalation in server mode","id":"CVE-2026-7813","kev_date_added":null,"published":"2026-05-11"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-01","vendors":["pgadmin.org"]},"summary":"Authenticated users can execute arbitrary OS commands via shell metacharacters in usernames when the MASTER_PASSWORD_HOOK feature is enabled.","url":"https://insights.sbomify.com/CVE-2026-17347/"}