Detections
Analytics

Echo: pgbouncer: security update to 1.26.0-1

high Tenable Cloud Security Plugin ID 455345

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Integer overflow in the packet buffer growth logic in PgBouncer through 1.25.2 allows an unauthenticated
 remote attacker to cause a denial of service. Sufficiently large input makes the buffer size computation
 overflow, leaving the growth loop unable to terminate. Because PgBouncer serves all clients from a single
 process, this saturates a CPU core and stalls every pooled connection until the process is killed. Both
 unauthenticated and authenticated code paths can reach the overflow. (CVE-2026-6668)

Solution

Update the pgbouncer library and its related packages to version 1.26.0-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-6668

Plugin Details

Severity: High

ID: 455345

Version: Revision 1.2

Type: Local

Published: 10/1/2026

Updated: 10/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.68

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-6668

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/26/2026

Vulnerability Publication Date: 9/23/2026

Reference Information

CVE: CVE-2026-6668