CVE-2026-19385: PostgreSQL pg_dump heap buffer overflow executes arbitrary code

highCVSS 8.8CVE-2026-19385

CSIRTS triage

vendor: PostgreSQL product: pg_dump Remote code execution Memory corruption

What: A heap buffer overflow in pg_dump allows arbitrary code execution.
Who is affected: Systems running pg_dump when processing crafted database dumps or corrupt data.
Urgency: High severity (CVSS 8.8); heap overflows can lead to immediate code execution; apply patches urgently.
Action: Update PostgreSQL to a patched version addressing CVE-2026-19385.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: high — CVSS 8.8
Published: 2026-08-11
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-19385

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-193850.61% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 46% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-19385	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

high[NEW] [high] PostgreSQL: Multiple vulnerabilitiescert-bund
unknownUSN-8653-1: PostgreSQL vulnerabilitiesubuntu
unknownMultiple vulnerabilities in PostgreSQL (August 14, 2026)cert-fr-avis
highCVE-2026-19385: Heap buffer overflow in PostgreSQL pg_dump of long function transform lists allows an object c…nvd

Recent advisories for PostgreSQL pg_dump heap

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highCVE-2026-19385: Heap buffer overflow in PostgreSQL pg_dump of long function transform lists allows an object c…nvd · 2026-08-13