🛡️ JLSEC-2026-26 — libpq-jll

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A flaw was found in PostgreSQL versions before 13.1, before 12.5, before 11.10, before 10.15, before 9.6.20 and before 9.5.24. If a client application that creates additional database connections only reuses the basic connection parameters while dropping security-relevant parameters, an opportunity for a man-in-the-middle attack, or the ability to observe clear-text transmissions, could exist. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

JLSEC-2026-26 is recorded against 1 package.

  • libpq-jll

Timeline and source

Published on 3 April 2026 and last revised on 18 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

bugzilla.redhat.com (Web)
lists.debian.org (Web)
security.gentoo.org (Web)
security.netapp.com (Web)
www.postgresql.org (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-04-03
Updated 2026-08-11
Modified 2026-07-18
Fix URL N/A

Affected Packages

Software From version Fixed in
libpq-jll — —

Similar Threats

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