CVE-2026-119924

Out-of-Bounds Read in Babelfish for PostgreSQL TDS RPC Procedure-Name Parser

Published Nov 6, 2026 CVSS 4.0 · 7.2 High EPSS < 1% KEV · Not listed

Description

An out-of-bounds read in the TDS RPC procedure-name 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 authenticated users to read adjacent process memory or cause a denial of service via a malformed TDS RPC request to the TDS port (default 1433).

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

AWS

babelfish-for-postgresql

unaffected

Version	Status	Constraints
`1.0`	affected	≤ 1.5
`2.1`	affected	≤ 2.15
`3.1`	affected	≤ 3.12
`4.0`	affected	≤ 4.8
`5.1`	affected	≤ 5.4

Amazon

Amazon Aurora PostgreSQL with Babelfish

unaffected

Version	Status	Constraints
`1.0.0`	affected	< 1.5.5
`1.6.0`	affected	< 1.17.2
`2.0.0`	affected	< 2.3.5
`2.4.0`	affected	< 2.12.4
`2.13.0`	affected	< 2.13.3
`2.14.0`	affected	< 2.14.2
`2.15.0`	affected	< 2.15.2
`2.16.0`	affected	< 2.16.1
`3.0.0`	affected	< 3.8.4
`3.9.0`	affected	< 3.9.4
`3.10.0`	affected	< 3.10.3
`3.11.0`	affected	< 3.11.2
`3.12.0`	affected	< 3.12.2
`3.13.0`	affected	< 3.13.1
`4.0.0`	affected	< 4.5.5
`4.6.0`	affected	< 4.6.3
`4.7.0`	affected	< 4.7.2
`4.8.0`	affected	< 4.8.2
`4.9.0`	affected	< 4.9.1
`5.0.0`	affected	< 5.1.4
`5.2.0`	affected	< 5.2.3
`5.3.0`	affected	< 5.3.2
`5.4.0`	affected	< 5.4.2
`5.5.0`	affected	—
`6.0.0`	affected	< 6.0.2

No data.

Vendor Product Versions

Amazon

Amazon Aurora Postgresql With Babelfish

Version	Status	Scheme	Platform
`[1.0.0,1.5.5)`	affected	semver	—
`[1.6.0,1.17.2)`	affected	semver	—
`[2.0.0,2.3.5)`	affected	semver	—
`[2.4.0,2.12.4)`	affected	semver	—
`[2.13.0,2.13.3)`	affected	semver	—
`[2.14.0,2.14.2)`	affected	semver	—
`[2.15.0,2.15.2)`	affected	semver	—
`[2.16.0,2.16.1)`	affected	semver	—
`[3.0.0,3.8.4)`	affected	semver	—
`[3.9.0,3.9.4)`	affected	semver	—
`[3.10.0,3.10.3)`	affected	semver	—
`[3.11.0,3.11.2)`	affected	semver	—
`[3.12.0,3.12.2)`	affected	semver	—
`[3.13.0,3.13.1)`	affected	semver	—
`[4.0.0,4.5.5)`	affected	semver	—
`[4.6.0,4.6.3)`	affected	semver	—
`[4.7.0,4.7.2)`	affected	semver	—
`[4.8.0,4.8.2)`	affected	semver	—
`[4.9.0,4.9.1)`	affected	semver	—
`[5.0.0,5.1.4)`	affected	semver	—
`[5.2.0,5.2.3)`	affected	semver	—
`[5.3.0,5.3.2)`	affected	semver	—
`[5.4.0,5.4.2)`	affected	semver	—
`5.5.0`	affected	semver	—
`[6.0.0,6.0.2)`	affected	semver	—

Aws

Babelfish-for-postgresql

Version	Status	Scheme	Platform
`[1.0,1.5]`	affected	generic	—
`[2.1,2.15]`	affected	generic	—
`[3.1,3.12]`	affected	generic	—
`[4.0,4.8]`	affected	generic	—
`[5.1,5.4]`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.519% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://aws.amazon.com/security/security-bulletins/2026-166-aws/
https://github.com/babelfish-for-postgresql/babelfish-for-postgresql/releases/tag/BABEL_4_10_0__PG_16_14
https://github.com/babelfish-for-postgresql/babelfish-for-postgresql/releases/tag/BABEL_5_6_0__PG_17_10
https://github.com/babelfish-for-postgresql/babelfish-for-postgresql/releases/tag/BABEL_6_1_0__PG_18_4
https://github.com/babelfish-for-postgresql/babelfish_extensions/security/advisories/GHSA-cv9q-3h4j-rv5m

History

Nov 7, 2026 9:45 PM Added references View changes

Type	Values Removed	Values Added
References		https://github.com/babelfish-for-postgresql/babelfish_extensions/security/advisories/GHSA-cv9q-3h4j-rv5m

Nov 7, 2026 7:30 AM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Nov 6, 2026 6:45 PM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		An out-of-bounds read in the TDS RPC procedure-name 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 authenticated users to read adjacent process memory or cause a denial of service via a malformed TDS RPC request to the TDS port (default 1433). 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.
Title		Out-of-Bounds Read in Babelfish for PostgreSQL TDS RPC Procedure-Name Parser
First Time appeared		Amazon Amazon amazon Aurora Postgresql With Babelfish Aws Aws babelfish-for-postgresql
Weaknesses		CWE-125
CPEs		cpe:2.3:a:amazon:amazon_aurora_postgresql_with_babelfish:::::::: cpe:2.3:a:amazon:amazon_aurora_postgresql_with_babelfish:5.5.0:::::::* cpe:2.3:a:aws:babelfish-for-postgresql::::::::
Vendors & Products		Amazon Amazon amazon Aurora Postgresql With Babelfish Aws Aws babelfish-for-postgresql
References		https://aws.amazon.com/security/security-bulletins/2026-166-aws/ https://github.com/babelfish-for-postgresql/babelfish-for-postgresql/releases/tag/BABEL_4_10_0__PG_16_14 https://github.com/babelfish-for-postgresql/babelfish-for-postgresql/releases/tag/BABEL_5_6_0__PG_17_10 https://github.com/babelfish-for-postgresql/babelfish-for-postgresql/releases/tag/BABEL_6_1_0__PG_18_4
Metrics		cvssV3_1 `{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H'}` cvssV4_0 `{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N'}`