CVE-2026-19888

7.5 Élevée

Publiée le 23/09/2026 à 19:17 · Modifiée le 23/09/2026 à 21:40 · En attente d'analyse NVD · Source : f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

Description

Missing validation of a mandatory attribute in the SCRAM client-final-message parser in PgBouncer through 1.25.2 allows an unauthenticated remote attacker to crash the process. A malformed message can make the parser report success while leaving a required value unset, which is then dereferenced as a NULL pointer. The crash occurs before any credential is verified, so no valid account is required. Because PgBouncer serves all clients from a single process, this terminates every pooled connection.

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Produits concernés

PgBouncer

Scores CVSS

Version	Score	Source	Vecteur
3.1	7.5 Élevée	f86ef6dc-4d3a-42ad-8f28-e6d5547a5007	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`

Faiblesses (CWE)

CWE-476

Références

https://www.pgbouncer.org/changelog.html

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories