High · CVSS 7.5CVE-2026-120061

psqlODBC ODBC escape parser stack buffer overflowCVE-2026-120061

Answer in brief

CVE-2026-120061 records a High severity (CVSS 7.5) vulnerability in psqlODBC ODBC escape parser stack buffer overflow. The current sources do not mark it as known exploited. The current feed maps PostgreSQL/psqlODBC (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 2, 2026Updated Nov 2, 2026Source checked Nov 2, 2026First seen by HOL Nov 2, 2026Material review Nov 2, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.5
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps PostgreSQL/psqlODBC (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
PostgreSQL/psqlODBCgeneric	>=0 <18.00.0006	18.00.0006

Recommended response

Check inventory. Check lockfiles and deployed manifests for PostgreSQL/psqlODBC.
Review the reported fix. Source-reported solution: 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.

Evidence timeline and material changes

Published upstream
Nov 2, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Nov 2, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Nov 2, 2026

Sources and claim methodology

GitHub security advisorygithub.com

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.