8.8

CVE-2026-2006: PostgreSQL missing validation of multibyte character length executes arbitrary code

Modified
AliasesALPINE-CVE-2026-2006SUSE-SU-2026:0769-1SUSE-SU-2026:0784-1
Published 12-02-2026Last modified 15-07-2026

Vulnerability summary

CVE-2026-2006 is a high (CVSS 8.8) Improper Validation of Array Index vulnerability in postgresql. EPSS estimates a 1.16% chance of exploitation in the next 30 days, higher than 67.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
1.16%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 61 · Related 31
DSA-6132-1DSA-6133-1MGASA-2026-0041OPENSUSE-SU-2026:10190-1OPENSUSE-SU-2026:10191-1OPENSUSE-SU-2026:10192-1

Timeline

  1. 12-02-2026
    PublishedVulnerability first disclosed.
  2. 15-07-2026
    Last modifiedVulnerability information updated.

Description

Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun. That suffices to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

1.16%

Chance of exploitation in the next 30 days

Percentile

67%

Versus all other CVEs

30-day change

Increase +0.02 pp

From 1.15% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Suse26 products
  • postgresql16&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 16.13-150200.5.41.1
  • postgresql16&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 16.13-150200.5.41.1
  • postgresql16&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS< 16.13-150200.5.41.1
  • postgresql16&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS< 16.13-150200.5.41.1
  • postgresql16&distro=SUSE Linux Enterprise Server 15 SP4-LTSS< 16.13-150200.5.41.1
Ubuntu7 products
  • postgresql-10All versions (No fix recorded)
  • postgresql-12All versions (No fix recorded)
  • postgresql-14< 14.22-0ubuntu0.22.04.1
  • postgresql-16< 16.13-0ubuntu0.24.04.1
  • postgresql-17< 17.9-0ubuntu0.25.10.1
Alpine4 products
  • postgresql15< 15.17-r0
  • postgresql16< 16.13-r0
  • postgresql17< 17.9-r0
  • postgresql18< 18.2-r0
Debian3 products
  • postgresql-15< 15.16-0+deb12u1
  • postgresql-17< 17.8-0+deb13u1
  • postgresql-18< 18.2-1
Chainguard1 product
  • postgresql-13< 13.23-r5
Postgresql1 product
  • postgresql≥ 14.0, < 14.21 | ≥ 15.0, < 15.16 | ≥ 16.0, < 16.12 | ≥ 17.0, < 17.8 | ≥ 18.0, < 18.2
Wolfi1 product
  • postgresql-13< 13.23-r5

7 vendors · 43 products

References

48 links
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