Medium 4.3Published Apr 1, 2021

CVE-2021-3393An information leak was discovered in postgresql in versions before 13.2, before 12.6 and before 11.11.

Updated under an hour ago (Nov 2, 2026, 12:23 AM ET)

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It affects postgresql and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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An information leak was discovered in postgresql in versions before 13.2, before 12.6 and before 11.11. A user having UPDATE permission but not SELECT permission to a particular column could craft queries which, under some circumstances, might disclose values from that column in error messages. An attacker could use this flaw to obtain information stored in a column they are allowed to write but not read.

CVSS: 4.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-209
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

postgresql postgresql postgresql:postgresql	before 11.11; from 12.0 before 12.6; from 13.0 before 13.2	NVD
redhat software_collections redhat:software_collections	all versions	NVD
redhat enterprise_linux redhat:enterprise_linux	8.0	NVD

References

References

https://bugzilla.redhat.com/show_bug.cgi?id=1924005	issue-tracking, third-party-advisory
https://security.gentoo.org/glsa/202105-32	third-party-advisory
https://security.netapp.com/advisory/ntap-20210507-0006/	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.