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CVE-2026-120061

psqlODBC ODBC escape parser stack buffer overflow

Products / packages PostgreSQL psqlODBC

Published

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Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 15/11/2026, 01:50:31 UTC
PostgreSQL · CVSS:3.1 · 7.5
Assessment vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity

high7.5

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Source guidance available

Review the recorded instructions. Guidance may be a workaround rather than a fixed version.

What this means

psqlODBC versions before 18.00.0006 have a stack buffer overflow weakness in the ODBC escape parser, potentially causing memory corruption if untrusted SQL text is forwarded to the driver. The parser does not initialize or bound a fixed array, and certain escape sequences can write past a buffer. An application that passes untrusted SQL text to the driver may be exposed.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

PostgreSQL · PostgreSQL

psqlODBC

1 range
PostgreSQL version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 18.00.0006

custom versions

unaffected

unknown

Other versions: unaffected

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

Upgrade to psqlODBC 18.00.0006 or later. The argument offset array is initialized and bounded, and the escape body copy reserves room for the terminator.

PostgreSQL guidance ↗

Do not pass SQL text from untrusted sources to the driver, or reject text containing ODBC escape sequences ({fn ...}, {d ...}, {t ...}, {ts ...}, {escape ...}) before it reaches the driver.

PostgreSQL guidance ↗

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher description

The psqlODBC parser for ODBC escape sequences in application SQL text writes the argument offsets of a {fn} escape into a fixed 16-entry stack array without a bound and does not initialize the array. An escape with too many arguments overflows the stack, and a reference to an unsupplied argument copies arbitrary bytes into the query. The copy of a {d}, {t}, {ts}, or {escape} body also writes one byte past a 128-byte stack buffer. An application that forwards untrusted SQL text to the driver exposes its process to memory corruption. Versions before psqlODBC 18.00.0006 are affected.

References

1 sources
postgresql-interfaces/psqlodbc · security/advisories/GHSA-hfm6-qfx8-v4xq
Vendor advisoryPostgreSQL

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-120061

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-121 ↗

CWE-121 Stack-based Buffer Overflow

PostgreSQL

Related →
CWE-193 ↗

CWE-193 Off-by-one Error

PostgreSQL

Related →
CWE-457 ↗

CWE-457 Use of Uninitialized Variable

PostgreSQL

Related →
Contributing organizations · 2
PostgreSQL

Assigning organization

2026-11-02
CISA-ADP

Additional data publisher

2026-11-02

Timeline

All times UTC

  1. Advisory published

    Publication date supplied by the source.

  2. Source updated

    Latest modification date supplied by the source.

  3. Last imported by cve.new

    Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes
  1. CVE · CVE-2026-120061

    Observed 2026-11-02T19:37:56.012Z · upstream updated 2026-11-02T19:35:04.484Z

    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-11-02T19:34:51.857010Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.