November 8, 2026

CVE Watchtower

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CVE-2026-119923NVD

Vulnerability Summary

A heap-based buffer overflow in the TDS prelogin parser in the Babelfish for PostgreSQL extension versions 1.0-1.5, 2.1-2.15, 3.1-3.12, 4.0-4.8, 5.1-5.4 and in Amazon Aurora PostgreSQL with Babelfish might allow remote attackers to execute arbitrary OS commands as the database process user via a specially crafted malformed TDS prelogin packet to the TDS port. This record consolidates a related NULL-pointer-dereference finding in the same prelogin parser.



To remediate this issue, we recommend users upgrade to Babelfish for PostgreSQL extension versions 4.10, 5.6, 6.1 or later. As a workaround, restrict network access to the TDS port (default 1433). Customers using Amazon Aurora PostgreSQL with Babelfish should upgrade their cluster to Aurora PostgreSQL 13.9.16 (1.5.5), 13.23.3 (1.17.2), 14.6.16 (2.3.5), 14.17.8 (2.12.4), 14.18.6 (2.13.3), 14.19.5 (2.14.2), 14.20.5 (2.15.2), 14.22.3 (2.16.1), 14.23.1 (2.17.0), 15.10.8 (3.8.4), 15.12.8 (3.9.4), 15.13.6 (3.10.3), 15.14.5 (3.11.2), 15.15.5 (3.12.2), 15.17.3 (3.13.1), 15.18.1 (3.14.0), 16.8.8 (4.5.5), 16.9.6 (4.6.3), 16.10.5 (4.7.2), 16.11.5 (4.8.2), 16.13.3 (4.9.1), 16.14.1 (4.10.0), 17.4.8 (5.1.4), 17.5.6 (5.2.3), 17.6.5 (5.3.2), 17.7.5 (5.4.2), 17.9.3 (5.5.1), 17.10.1 (5.6.0), 18.3.4 (6.0.2), 18.4.1 (6.1.0) or later, and apply any pending maintenance to ensure they are on the latest patch.
Severity Level
CRITICAL(9.3)
Published Date
Nov 6, 2026
Last Modified
Nov 7, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.62%Probability
Root Weakness (CWE)
CWE-122: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v4.0 Base Metrics — Score 9.3 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredNone
User InteractionNone
Confidentiality (Vulnerable System)High
Integrity (Vulnerable System)High
Availability (Vulnerable System)High
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
CVSS v3.1 Base Metrics — Score 9.8 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • AWS babelfish-for-postgresql >= 1.0 and <= 1.5
  • AWS babelfish-for-postgresql >= 2.1 and <= 2.15
  • AWS babelfish-for-postgresql >= 3.1 and <= 3.12
  • AWS babelfish-for-postgresql >= 4.0 and <= 4.8
  • AWS babelfish-for-postgresql >= 5.1 and <= 5.4
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 1.0.0 and < 1.5.5
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 1.6.0 and < 1.17.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 2.0.0 and < 2.3.5
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 2.4.0 and < 2.12.4
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 2.13.0 and < 2.13.3
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 2.14.0 and < 2.14.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 2.15.0 and < 2.15.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 2.16.0 and < 2.16.1
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 3.0.0 and < 3.8.4
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 3.9.0 and < 3.9.4
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 3.10.0 and < 3.10.3
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 3.11.0 and < 3.11.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 3.12.0 and < 3.12.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 3.13.0 and < 3.13.1
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 4.0.0 and < 4.5.5
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 4.6.0 and < 4.6.3
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 4.7.0 and < 4.7.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 4.8.0 and < 4.8.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 4.9.0 and < 4.9.1
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 5.0.0 and < 5.1.4
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 5.2.0 and < 5.2.3
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 5.3.0 and < 5.3.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 5.4.0 and < 5.4.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 5.5.0
  • Amazon Amazon Aurora PostgreSQL with Babelfish >= 6.0.0 and < 6.0.2
Patched Versions
  • AWS babelfish-for-postgresql 1.5
  • AWS babelfish-for-postgresql 2.15
  • AWS babelfish-for-postgresql 3.12
  • AWS babelfish-for-postgresql 4.8
  • AWS babelfish-for-postgresql 5.4
  • Amazon Amazon Aurora PostgreSQL with Babelfish 1.5.5
  • Amazon Amazon Aurora PostgreSQL with Babelfish 1.17.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish 2.3.5
  • Amazon Amazon Aurora PostgreSQL with Babelfish 2.12.4
  • Amazon Amazon Aurora PostgreSQL with Babelfish 2.13.3
  • Amazon Amazon Aurora PostgreSQL with Babelfish 2.14.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish 2.15.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish 2.16.1
  • Amazon Amazon Aurora PostgreSQL with Babelfish 3.8.4
  • Amazon Amazon Aurora PostgreSQL with Babelfish 3.9.4
  • Amazon Amazon Aurora PostgreSQL with Babelfish 3.10.3
  • Amazon Amazon Aurora PostgreSQL with Babelfish 3.11.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish 3.12.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish 3.13.1
  • Amazon Amazon Aurora PostgreSQL with Babelfish 4.5.5
  • Amazon Amazon Aurora PostgreSQL with Babelfish 4.6.3
  • Amazon Amazon Aurora PostgreSQL with Babelfish 4.7.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish 4.8.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish 4.9.1
  • Amazon Amazon Aurora PostgreSQL with Babelfish 5.1.4
  • Amazon Amazon Aurora PostgreSQL with Babelfish 5.2.3
  • Amazon Amazon Aurora PostgreSQL with Babelfish 5.3.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish 5.4.2
  • Amazon Amazon Aurora PostgreSQL with Babelfish 6.0.2
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🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References