high · 8.8

A flaw was found in PostgreSQL that allows authenticated database users to execute arbitrary code through missing overflow checks during …

CVE-2023-5869 · GHSA-9625-p7pg-3cxg · EUVD-2023-58143 · published 10 Dec 2023

How serious is it

  • Severity: high, CVSS score 8.8 out of 10.
  • No exploit prediction (EPSS) score yet.
  • Not on the CISA list of exploited vulnerabilities.
  • No public exploit in Exploit-DB.

Is your app affected by CVE-2023-5869?

Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.

Who is affected

  • Red Hat Red Hat Enterprise Linux 7: patch: 0:9.2.24-9.el7_9
  • Red Hat Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions: patch: 8010020231130170510.c27ad7f8
  • Red Hat Red Hat Software Collections for Red Hat Enterprise Linux 7: patch: 0:13.13-1.el7
  • Red Hat RHACS-3.74-RHEL-8: patch: 3.74.8-7
  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support: patch: 8060020231201202249.ad008a3a
  • Red Hat Red Hat Enterprise Linux 9: patch: 0:13.13-1.el9_3
  • Red Hat Red Hat Enterprise Linux 8: patch: 8090020231201202407.a75119d5
  • Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions: patch: 8020020231201202149.4cda2c84
  • Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support: patch: 8080020231201202316.63b34585
  • Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support: patch: 0:13.13-1.el9_0

How to check

  1. Find out whether you run the affected product and which version, then compare it with the versions above.

How to fix

Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
  1. Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
  2. If a vulnerable version was live, check your logs and rotate the secrets that server could read.

The advisory

A flaw was found in PostgreSQL that allows authenticated database users to execute arbitrary code through missing overflow checks during SQL array value modification. This issue exists due to an integer overflow during array modification where a remote user can trigger the overflow by providing specially crafted data. This enables the execution of arbitrary code on the target system, allowing users to write arbitrary bytes to memory and extensively read the server's memory.

Check your whole app

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References

Merged from ENISA EUVD. Last updated 3 Nov 2026. All vulnerabilities · RSS · JSON

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