PostgreSQL JDBC Driver Security Bypass Flaw
A vulnerability in PostgreSQL JDBC driver versions 42.7.4 through 42.7.11 allows attackers to bypass security policy.
Sourcecert.ssi.gouv.fr — open the original
What to check
- Applies to
- The 1 CVE named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
ANSSI (CERT-FR) issued an advisory describing a security policy bypass vulnerability affecting the PostgreSQL JDBC driver, impacting versions greater than or equal to 42.7.4 and prior to 42.7.12. The flaw is tracked as CVE-2026-54291 and was disclosed alongside a PostgreSQL JDBC security release published on July 6, 2026.
The advisory does not indicate active exploitation in the wild; it is a vendor-driven patch notification. Affected organizations using the vulnerable JDBC driver versions in Java applications connecting to PostgreSQL databases should apply the vendor-provided patches referenced in the official PostgreSQL security bulletin.
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0837
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