CVE-2026-96538

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Source

https://cve.org/CVERecord?id=CVE-2026-96538

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-96538.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-96538

Published

2026-09-28T15:17:25Z

Modified

2026-10-02T08:13:39Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Summary

[none]

Details

WarehousePG (WHPG) 7.x before 7.6.0-WHPG is affected by a missing authorization vulnerability (CWE-862) in the built-in server-side file functions pg_file_write(text,text,bool), pg_file_rename(text,text,text), pg_file_unlink(text), and pg_logdir_ls(). These functions are executable by any authenticated database role with no GRANT required, because the REVOKE that contrib/adminpack applies to the equivalent functions was never carried over to WHPG core when their catalog entries were repointed to the ungated adminpack-derived implementations as part of Greenplum's merge to a PostgreSQL 12 base. A non-superuser can use pg_file_write, pg_file_rename, and pg_file_unlink to create, overwrite (append), rename, and delete files under the data and log directories, and can use pg_logdir_ls() to enumerate log file names. Because postgresql.auto.conf resides in the data directory, a non-superuser can append configuration directives such as shared_preload_libraries or archive_command to it, resulting in arbitrary code execution as the postgres operating system user on the next server restart or configuration reload. WarehousePG 6.x is not affected, as the equivalent functions there enforce a superuser check internally.

References

Affected packages

Git / github.com/warehouse-pg/warehouse-pg

Affected ranges

Type

GIT

Repo

https://github.com/warehouse-pg/warehouse-pg

Events

Introduced

Fixed

0f73ef6e0729cbf71cf225b41d58e1bd1090f335

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "7.x"
        },
        {
            "fixed":  "7.6.0-WHPG"
        }
    ],
    "source":  "DESCRIPTION"
}

Affected versions

5.*

5.0.0-alpha.0

5.0.0-alpha.1

5.0.0-alpha.2

5.0.0-alpha.3

5.0.0-alpha.4

5.0.0-alpha.5

5.0.0-alpha.6

5.0.0-alpha.7

5.0.0-alpha.8

5.0.0-beta.1

5.0.0-beta.10

5.0.0-beta.2

5.0.0-beta.3

5.0.0-beta.4

5.0.0-beta.5

5.0.0-beta.6

5.0.0-beta.7

5.0.0-beta.8

5.0.0-beta.9

6.*

6.0.0-alpha.0

6.0.0-alpha.2

7.*

7.0.0

7.0.0-alpha.0

7.0.0-beta.1

7.0.0-beta.2

7.0.0-beta.3

7.0.0-beta.4

7.0.0-beta.5

7.0.0-rc.2

7.1.0

7.1.0-rc.1

7.2.0-rc.1

7.2.1-WHPG

7.2.1-WHPG-rc.1

7.3.0-WHPG

7.4.0-WHPG

7.5.0-WHPG

Other

Pre-5-disk-layout-change

after-gpdb-import

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-96538.json"

vanir_signatures

[
    {
        "deprecated":  false,
        "digest":  {
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                "94338822219973484603989971623128309677",
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                "281984945520123169601669934821703889191"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-96538-0115e86a",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/warehouse-pg/warehouse-pg/commit/0f73ef6e0729cbf71cf225b41d58e1bd1090f335",
        "target":  {
            "file":  "src/backend/commands/tablecmds.c"
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    },
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        "deprecated":  false,
        "digest":  {
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            "length":  8887
        },
        "id":  "CVE-2026-96538-0ffb0a92",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/warehouse-pg/warehouse-pg/commit/0f73ef6e0729cbf71cf225b41d58e1bd1090f335",
        "target":  {
            "file":  "src/backend/commands/tablecmds.c",
            "function":  "ATExecCmd"
        }
    },
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        "deprecated":  false,
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            "threshold":  0.9
        },
        "id":  "CVE-2026-96538-303201dc",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/warehouse-pg/warehouse-pg/commit/0f73ef6e0729cbf71cf225b41d58e1bd1090f335",
        "target":  {
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    },
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            "threshold":  0.9
        },
        "id":  "CVE-2026-96538-b0fb2ee0",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/warehouse-pg/warehouse-pg/commit/0f73ef6e0729cbf71cf225b41d58e1bd1090f335",
        "target":  {
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        }
    }
]

vanir_signatures_modified

"2026-10-02T08:13:39Z"