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TI-2026-01660 Aliases CVE-2026-2003GHSA-f3vj-j2m6-8hfj

PostgreSQL oidvector discloses a few bytes of memory

Priority LOW 20CWE-1287Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
Partial Red Hat: 13 fixed, 4 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

Improper validation of type "oidvector" in PostgreSQL allows a database user to disclose a few bytes of server memory. We have not ruled out viability of attacks that arrange for presence of confidential information in disclosed bytes, but they seem unlikely. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00319 24th percentileScored 2026-11-07
Fix Partial PostgreSQL: 18.2, 17.8, 16.12 +2Red Hat: 17 advisoriesRed Hat: 13 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—PostgreSQL18 to before 18.2; 17 to before 17.8; 16 to before 16.12; 15 to before 15.16; before 14.2118.2, 17.8, 16.12, 15.16, 14.21Patch availableCNA
  • PostgreSQL Vendor— Affected 18 to before 18.2; 17 to before 17.8; 16 to before 16.12; 15 to before 15.16; before 14.21 Fixed in 18.2, 17.8, 16.12, 15.16, 14.21 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*14.0 to before 14.21; 15.0 to before 15.16; 16.0 to before 16.12; 17.0 to before 17.8; 18.0 to before 18.2VulnerablePostgreSQL
  • cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* Versions 14.0 to before 14.21; 15.0 to before 15.16; 16.0 to before 16.12; 17.0 to before 17.8; 18.0 to before 18.2 Vulnerable ·PostgreSQL

Remediation

  • Fix · CNA PostgreSQL Fixed in 18.2, 17.8, 16.12, 15.16, 14.21

Red Hat 17 advisories

  • RHSA-2026:19010 Released 2026-05-19 · Red Hat rating Important
    postgresql16 security update
    • Red Hat Enterprise Linux AppStream (v. 10) postgresql-16.13-1.el10_2, postgresql-contrib-16.13-1.el10_2, postgresql-docs-16.13-1.el10_2 +12
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) postgresql-test-rpm-macros-16.13-1.el10_2
  • RHSA-2026:19009 Released 2026-05-19 · Red Hat rating Important
    postgresql18 security update
    • Red Hat Enterprise Linux AppStream (v. 10) postgresql18-18.3-1.el10_2, postgresql18-contrib-18.3-1.el10_2, postgresql18-docs-18.3-1.el10_2 +10
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) postgresql18-test-rpm-macros-18.3-1.el10_2
  • RHSA-2026:8756 Released 2026-04-17 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images postgresql18-18.3-1.2.hum1@src
Show 14 more Red Hat advisories
  • RHSA-2026:4943 Released 2026-03-18 · Red Hat rating Important
    Red Hat Update Infrastructure 5.1 security update
    • Red Hat Update Infrastructure 5 registry.redhat.io/rhui5/cds-rhel9, registry.redhat.io/rhui5/haproxy-rhel9, registry.redhat.io/rhui5/installer-rhel9 +1
  • RHSA-2026:4548 Released 2026-03-12 · Red Hat rating Important
    postgresql:15 security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) pg_repack-1.4.8-1.module+el9.2.0+17405+aeb9ec60.aarch64::postgresql:15, pg_repack-1.4.8-1.module+el9.2.0+17405+aeb9ec60.ppc64le::postgresql:15, pg_repack-1.4.8-1.module+el9.2.0+17405+aeb9ec60.s390x::postgresql:15 +47
  • RHSA-2026:4547 Released 2026-03-12 · Red Hat rating Important
    postgresql:16 security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) pg_repack-1.5.1-1.module+el9.6.0+22880+6b241eec.aarch64::postgresql:16, pg_repack-1.5.1-1.module+el9.6.0+22880+6b241eec.ppc64le::postgresql:16, pg_repack-1.5.1-1.module+el9.6.0+22880+6b241eec.s390x::postgresql:16 +47
  • RHSA-2026:4544 Released 2026-03-12 · Red Hat rating Important
    postgresql:16 security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) pg_repack-1.4.8-1.module+el9.4.0+20427+07482b8c.aarch64::postgresql:16, pg_repack-1.4.8-1.module+el9.4.0+20427+07482b8c.ppc64le::postgresql:16, pg_repack-1.4.8-1.module+el9.4.0+20427+07482b8c.s390x::postgresql:16 +47
  • RHSA-2026:4546 Released 2026-03-12 · Red Hat rating Important
    postgresql:15 security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) pg_repack-1.4.8-2.module+el9.5.0+22224+f5585c78.aarch64::postgresql:15, pg_repack-1.4.8-2.module+el9.5.0+22224+f5585c78.ppc64le::postgresql:15, pg_repack-1.4.8-2.module+el9.5.0+22224+f5585c78.s390x::postgresql:15 +47
  • RHSA-2026:4515 Released 2026-03-12 · Red Hat rating Important
    postgresql:15 security update
    • Red Hat Enterprise Linux AppStream E4S (v.8.8) pg_repack-1.4.8-1.module+el8.8.0+17071+aaaceaa4.ppc64le::postgresql:15, pg_repack-1.4.8-1.module+el8.8.0+17071+aaaceaa4.src::postgresql:15, pg_repack-1.4.8-1.module+el8.8.0+17071+aaaceaa4.x86_64::postgresql:15 +36
  • RHSA-2026:4441 Released 2026-03-12 · Red Hat rating Important
    postgresql16 security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) postgresql-16.13-1.el10_0, postgresql-contrib-16.13-1.el10_0, postgresql-docs-16.13-1.el10_0 +12
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) postgresql-test-rpm-macros-16.13-1.el10_0
  • RHSA-2026:4254 Released 2026-03-11 · Red Hat rating Important
    postgresql:15 security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) pg_repack-1.4.8-1.module+el9.2.0+17405+aeb9ec60.aarch64::postgresql:15, pg_repack-1.4.8-1.module+el9.2.0+17405+aeb9ec60.ppc64le::postgresql:15, pg_repack-1.4.8-1.module+el9.2.0+17405+aeb9ec60.s390x::postgresql:15 +47
  • RHSA-2026:4110 Released 2026-03-09 · Red Hat rating Important
    postgresql:16 security update
    • Red Hat Enterprise Linux AppStream (v. 9) pg_repack-1.5.1-1.module+el9.6.0+22880+6b241eec.aarch64::postgresql:16, pg_repack-1.5.1-1.module+el9.6.0+22880+6b241eec.ppc64le::postgresql:16, pg_repack-1.5.1-1.module+el9.6.0+22880+6b241eec.s390x::postgresql:16 +47
  • RHSA-2026:4063 Released 2026-03-09 · Red Hat rating Important
    postgresql:16 security update
    • Red Hat Enterprise Linux AppStream (v. 8) pg_repack-1.5.1-1.module+el8.10.0+22551+c0330dc9.aarch64::postgresql:16, pg_repack-1.5.1-1.module+el8.10.0+22551+c0330dc9.ppc64le::postgresql:16, pg_repack-1.5.1-1.module+el8.10.0+22551+c0330dc9.s390x::postgresql:16 +47
  • RHSA-2026:4059 Released 2026-03-09 · Red Hat rating Important
    postgresql:15 security update
    • Red Hat Enterprise Linux AppStream (v. 8) pg_repack-1.4.8-1.module+el8.9.0+19797+c4ce5969.aarch64::postgresql:15, pg_repack-1.4.8-1.module+el8.9.0+19797+c4ce5969.ppc64le::postgresql:15, pg_repack-1.4.8-1.module+el8.9.0+19797+c4ce5969.s390x::postgresql:15 +47
  • RHSA-2026:3896 Released 2026-03-05 · Red Hat rating Important
    postgresql:15 security update
    • Red Hat Enterprise Linux AppStream (v. 9) pg_repack-1.4.8-2.module+el9.5.0+22224+f5585c78.aarch64::postgresql:15, pg_repack-1.4.8-2.module+el9.5.0+22224+f5585c78.ppc64le::postgresql:15, pg_repack-1.4.8-2.module+el9.5.0+22224+f5585c78.s390x::postgresql:15 +47
  • RHSA-2026:3887 Released 2026-03-05 · Red Hat rating Important
    postgresql16 security update
    • Red Hat Enterprise Linux AppStream (v. 10) postgresql-16.13-1.el10_1, postgresql-contrib-16.13-1.el10_1, postgresql-docs-16.13-1.el10_1 +12
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) postgresql-test-rpm-macros-16.13-1.el10_1
  • RHSA-2026:3730 Released 2026-03-04 · Red Hat rating Important
    postgresql security update
    • Red Hat Enterprise Linux AppStream (v. 9) postgresql-13.23-2.el9_7, postgresql-contrib-13.23-2.el9_7, postgresql-plperl-13.23-2.el9_7 +5
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) postgresql-docs-13.23-2.el9_7, postgresql-private-devel-13.23-2.el9_7, postgresql-server-devel-13.23-2.el9_7 +4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    PostgreSQL 14.21, 15.16 and 3 more versions

    4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-01662 PostgreSQL pgcrypto heap buffer overflow executes arbitrary codePriority MEDIUM 43
    • TI-2026-01661 PostgreSQL intarray missing validation of type of input to selectivity estimator executes arbitrary codePriority MEDIUM 43
    • TI-2026-01663 PostgreSQL missing validation of multibyte character length executes arbitrary codePriority MEDIUM 42
    Show all 4 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 7AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:19009, RHSA-2026:19010, RHSA-2026:3887
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:4059, RHSA-2026:4063
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:3730, RHSA-2026:3896, RHSA-2026:4110
Red Hat Enterprise Linux AppStream E4S (v.8.8)Fixed RHSA-2026:4515
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:4254
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:4441
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2026:4544, RHSA-2026:4548
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:4546, RHSA-2026:4547
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:19009, RHSA-2026:19010, RHSA-2026:3887
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2026:3730
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2026:4441
Red Hat Hardened ImagesFixed RHSA-2026:8756
Red Hat Update Infrastructure 5Fixed RHSA-2026:4943
Not affected: 2 products
  • Red Hat Hardened Images
  • Red Hat Update Infrastructure 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-2003
  2. 2026-10-03 Alias added: GHSA-f3vj-j2m6-8hfj

References

Advisory 1

  • TI-2019-06651 In PostgreSQL 9.3 through 11.2, the "COPY TO/FROM PROGRAM" function allows superusers and… CVSS 3.0HIGH 7.2
  • TI-2017-05187 Improper authentication in postgresql CVSS 3.0CRITICAL 9.8
  • TI-2020-15711 SQL injection in postgresql CVSS 3.1HIGH 8.8
  • TI-2013-01675 Argument injection vulnerability in PostgreSQL 9.2.x before 9.2.4, 9.1.x before 9.1.9… CVSS 2.0MEDIUM 6.5
  • TI-2007-03176 The Database Link library (dblink) in PostgreSQL 8.1 implements functions via CREATE… CVSS 2.0HIGH 9.0
  • TI-2022-01423 SQL injection in postgresql CVSS 3.1HIGH 8.8
See all 202 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences