Event Monitor Cyber
EM-20261112-541W VulnerabilityHigh severity

PostgreSQL SQL-language Vulnerability (CVE-2026-18447)

CVE-2026-18447

Share
Status
Developing

Since : signals keep joining.

First Signal
Nov 12 14:15 UTCC41 Red Hat Security Data
Page Born
Nov 12 15:17 UTCsecond source joined
Last Signal
Nov 12 15:17 UTC24 hours before snapshot
Sources
21 official · 1 research, news or crowd
Open For
10 hoursso far

Life Of This Page

  1. 1
    Born
    A second, independent source names it.
  2. 2
    Developing · Now
    New signals join; severity can move.
  3. 3
    Confirmed
    Not yet
    CISA KEV lists it, or exploitation in the wild is reported.
  4. 4
    Resolved
    Not yet
    Past the fix deadline and 14 days with no new signal.
  5. 5
    Archived
    Not yet
    30 days after resolved. Read only; the link keeps working. Reopens if it comes back.

The ID never changes, and earlier addresses keep working. A correction is logged, never overwritten. If two pages turn out to be one incident, the later one points to the earlier.

Vulnerability Lifecycle

  1. Disclosed: reached
    Nov 12 15:17 UTC
    C6 NVD published
  2. Scored: reached
    Nov 12 15:17 UTC
    CVSS 8.8
  3. Exploited: not yet
    Not yet
    No exploitation reported
  4. Advisories: not yet
    Not yet
    None yet
  5. Vendor Response: reached
    Nov 12 14:15 UTC
    C41 published
  6. Resolved: not yet
    Not yet
    After 14 quiet days

Timeline

10:0012:0014:0016:0018:0020:0022:00Nov 13BornC41 Red Hat Security DataC6 NVD CVE API 2.0

Point at a mark to read it. Squares are signals, colored by severity; every one is also listed under Signals.

Signals

  1. CVE-2026-18447 (CVSS 8.8) (opens source in a new tab) Type confusion in PostgreSQL SQL-language functions allows an object creator to execute arbitrary code as the operating system user running the database, via an output parameter of type "any". Versions before… High severityDatabaseC6 NVD CVE API 2.0
  2. Red Hat: CVE-2026-18447 (important) (opens source in a new tab) postgresql: postgresql: Arbitrary code execution via type confusion in SQL-language functions High severityVendorC41 Red Hat Security Data