Vulnerability · Published Feb 12, 2026 · Assigned by PostgreSQL

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

High 8.8

In plain English

A high-severity security flaw in PostgreSQL. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 67% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)1.2%top 32.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8pg_repack1.5.1-1.module_el8.10.0+3930+ecf33554ALSA-2026:4063
AlmaLinux:8pg_repack1.4.6-3.module_el8.9.0+3704+f1f917ceALSA-2026:4064
AlmaLinux:8pg_repack1.5.1-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:8pg_repack1.4.6-3.module_el8.6.0+3095+ee60d910ALSA-2026:4024
AlmaLinux:8pg_repack1.4.6-3.module_el8.6.0+2760+1746ec94ALSA-2026:4024
AlmaLinux:8pg_repack1.4.8-1.module_el8.9.0+3706+885c732eALSA-2026:4059
AlmaLinux:9pg_repack1.5.1-1.module_el9.6.0+146+c54fdecaALSA-2026:4110
AlmaLinux:9pg_repack1.4.8-2.module_el9.5.0+119+18833d03ALSA-2026:3896
AlmaLinux:8pgaudit1.4.0-7.module_el8.10.0+3889+48cb11fb.alma.1ALSA-2026:4064
AlmaLinux:8pgaudit16.0-1.module_el8.10.0+3798+606ebb9fALSA-2026:4063
AlmaLinux:8pgaudit1.7.0-1.module_el8.9.0+3706+885c732eALSA-2026:4059
AlmaLinux:8pgaudit1.4.0-7.module_el8.9.0+3740+0e74851f.alma.1ALSA-2026:4064
AlmaLinux:8pgaudit1.5.0-1.module_el8.6.0+3095+ee60d910ALSA-2026:4024
AlmaLinux:8pgaudit1.5.0-1.module_el8.6.0+2760+1746ec94ALSA-2026:4024
AlmaLinux:9pgaudit1.7.0-1.module_el9.3.0+52+21733919ALSA-2026:3896
AlmaLinux:9pgaudit16.0-1.module_el9.4.0+66+eb9878bcALSA-2026:4110
AlmaLinux:9pgvector0.6.2-2.module_el9.6.0+167+4e561146ALSA-2026:4110
AlmaLinux:9postgis3.5.3-3.module_el9.7.0+187+2286ff0aALSA-2026:4110
AlmaLinux:9postgis-client3.5.3-3.module_el9.7.0+187+2286ff0aALSA-2026:4110
AlmaLinux:9postgis-docs3.5.3-3.module_el9.7.0+187+2286ff0aALSA-2026:4110
AlmaLinux:9postgis-upgrade3.5.3-3.module_el9.7.0+187+2286ff0aALSA-2026:4110
AlmaLinux:9postgis-utils3.5.3-3.module_el9.7.0+187+2286ff0aALSA-2026:4110
AlmaLinux:8postgres-decoderbufs0.10.0-2.module_el8.9.0+3704+f1f917ceALSA-2026:4064
AlmaLinux:8postgres-decoderbufs1.9.7-1.Final.module_el8.9.0+3706+885c732eALSA-2026:4059
AlmaLinux:8postgres-decoderbufs0.10.0-2.module_el8.6.0+2760+1746ec94ALSA-2026:4024
AlmaLinux:8postgres-decoderbufs2.4.0-1.Final.module_el8.10.0+3798+606ebb9fALSA-2026:4063
AlmaLinux:8postgres-decoderbufs0.10.0-2.module_el8.6.0+3095+ee60d910ALSA-2026:4024
AlmaLinux:9postgres-decoderbufs1.9.7-1.Final.module_el9.3.0+52+21733919ALSA-2026:3896
AlmaLinux:9postgres-decoderbufs2.4.0-1.Final.module_el9.4.0+66+eb9878bcALSA-2026:4110
AlmaLinux:10postgresql16.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql12.22-6.module_el8.10.0+4123+1638d348ALSA-2026:4064
AlmaLinux:8postgresql13.23-2.module_el8.10.0+4124+c9cb0592ALSA-2026:4024
AlmaLinux:8postgresql16.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:8postgresql15.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:9postgresql15.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:9postgresql13.23-2.el9_7ALSA-2026:3730
AlmaLinux:9postgresql16.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:10postgresql-contrib16.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql-contrib16.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:8postgresql-contrib13.23-2.module_el8.10.0+4124+c9cb0592ALSA-2026:4024
AlmaLinux:8postgresql-contrib15.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:8postgresql-contrib12.22-6.module_el8.10.0+4123+1638d348ALSA-2026:4064
AlmaLinux:9postgresql-contrib16.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:9postgresql-contrib15.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:9postgresql-contrib13.23-2.el9_7ALSA-2026:3730
AlmaLinux:10postgresql-docs16.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql-docs15.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:8postgresql-docs16.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:8postgresql-docs13.23-2.module_el8.10.0+4124+c9cb0592ALSA-2026:4024
AlmaLinux:8postgresql-docs12.22-6.module_el8.10.0+4123+1638d348ALSA-2026:4064
AlmaLinux:9postgresql-docs15.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:9postgresql-docs13.23-2.el9_7ALSA-2026:3730
AlmaLinux:9postgresql-docs16.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:10postgresql-plperl16.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql-plperl15.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:8postgresql-plperl16.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:8postgresql-plperl13.23-2.module_el8.10.0+4124+c9cb0592ALSA-2026:4024
AlmaLinux:8postgresql-plperl12.22-6.module_el8.10.0+4123+1638d348ALSA-2026:4064
AlmaLinux:9postgresql-plperl13.23-2.el9_7ALSA-2026:3730
AlmaLinux:9postgresql-plperl15.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:9postgresql-plperl16.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:10postgresql-plpython316.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql-plpython315.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:8postgresql-plpython313.23-2.module_el8.10.0+4124+c9cb0592ALSA-2026:4024
AlmaLinux:8postgresql-plpython312.22-6.module_el8.10.0+4123+1638d348ALSA-2026:4064
AlmaLinux:8postgresql-plpython316.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:9postgresql-plpython313.23-2.el9_7ALSA-2026:3730
AlmaLinux:9postgresql-plpython315.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:9postgresql-plpython316.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:10postgresql-pltcl16.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql-pltcl13.23-2.module_el8.10.0+4124+c9cb0592ALSA-2026:4024
AlmaLinux:8postgresql-pltcl12.22-6.module_el8.10.0+4123+1638d348ALSA-2026:4064
AlmaLinux:8postgresql-pltcl16.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:8postgresql-pltcl15.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:9postgresql-pltcl15.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:9postgresql-pltcl16.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:9postgresql-pltcl13.23-2.el9_7ALSA-2026:3730
AlmaLinux:10postgresql-private-devel16.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql-private-devel16.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:8postgresql-private-devel15.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:9postgresql-private-devel15.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:9postgresql-private-devel13.23-2.el9_7ALSA-2026:3730
AlmaLinux:9postgresql-private-devel16.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:10postgresql-private-libs16.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql-private-libs15.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:8postgresql-private-libs16.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:9postgresql-private-libs15.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:9postgresql-private-libs13.23-2.el9_7ALSA-2026:3730
AlmaLinux:9postgresql-private-libs16.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:10postgresql-server16.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql-server13.23-2.module_el8.10.0+4124+c9cb0592ALSA-2026:4024
AlmaLinux:8postgresql-server16.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:8postgresql-server12.22-6.module_el8.10.0+4123+1638d348ALSA-2026:4064
AlmaLinux:8postgresql-server15.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:9postgresql-server13.23-2.el9_7ALSA-2026:3730
AlmaLinux:9postgresql-server15.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:9postgresql-server16.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:10postgresql-server-devel16.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql-server-devel13.23-2.module_el8.10.0+4124+c9cb0592ALSA-2026:4024
AlmaLinux:8postgresql-server-devel12.22-6.module_el8.10.0+4123+1638d348ALSA-2026:4064
AlmaLinux:8postgresql-server-devel15.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:8postgresql-server-devel16.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:9postgresql-server-devel13.23-2.el9_7ALSA-2026:3730
AlmaLinux:9postgresql-server-devel15.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:9postgresql-server-devel16.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:10postgresql-static16.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql-static13.23-2.module_el8.10.0+4124+c9cb0592ALSA-2026:4024
AlmaLinux:8postgresql-static15.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:8postgresql-static12.22-6.module_el8.10.0+4123+1638d348ALSA-2026:4064
AlmaLinux:8postgresql-static16.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:9postgresql-static15.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:9postgresql-static13.23-2.el9_7ALSA-2026:3730
AlmaLinux:9postgresql-static16.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:10postgresql-test16.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql-test15.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:8postgresql-test12.22-6.module_el8.10.0+4123+1638d348ALSA-2026:4064
AlmaLinux:8postgresql-test16.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:8postgresql-test13.23-2.module_el8.10.0+4124+c9cb0592ALSA-2026:4024
AlmaLinux:9postgresql-test13.23-2.el9_7ALSA-2026:3730
AlmaLinux:9postgresql-test16.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:9postgresql-test15.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:10postgresql-test-rpm-macros16.13-1.el10_1ALSA-2026:3887
AlmaLinux:10postgresql-test-rpm-macros16.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql-test-rpm-macros15.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:8postgresql-test-rpm-macros12.22-6.module_el8.10.0+4123+1638d348ALSA-2026:4064
AlmaLinux:8postgresql-test-rpm-macros16.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:8postgresql-test-rpm-macros13.23-2.module_el8.10.0+4124+c9cb0592ALSA-2026:4024
AlmaLinux:9postgresql-test-rpm-macros16.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:9postgresql-test-rpm-macros15.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:9postgresql-test-rpm-macros13.23-2.el9_7ALSA-2026:3730
AlmaLinux:10postgresql-upgrade16.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql-upgrade16.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:8postgresql-upgrade13.23-2.module_el8.10.0+4124+c9cb0592ALSA-2026:4024
AlmaLinux:8postgresql-upgrade15.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:8postgresql-upgrade12.22-6.module_el8.10.0+4123+1638d348ALSA-2026:4064
AlmaLinux:9postgresql-upgrade15.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:9postgresql-upgrade13.23-2.el9_7ALSA-2026:3730
AlmaLinux:9postgresql-upgrade16.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:10postgresql-upgrade-devel16.13-1.el10_2ALSA-2026:19010
AlmaLinux:8postgresql-upgrade-devel12.22-6.module_el8.10.0+4123+1638d348ALSA-2026:4064
AlmaLinux:8postgresql-upgrade-devel15.17-1.module_el8.10.0+4127+dc6e3c5cALSA-2026:4059
AlmaLinux:8postgresql-upgrade-devel13.23-2.module_el8.10.0+4124+c9cb0592ALSA-2026:4024
AlmaLinux:8postgresql-upgrade-devel16.13-1.module_el8.10.0+4125+ceaf7d1bALSA-2026:4063
AlmaLinux:9postgresql-upgrade-devel16.13-1.module_el9.7.0+213+65e1da69ALSA-2026:4110
AlmaLinux:9postgresql-upgrade-devel15.17-1.module_el9.7.0+214+91f631dfALSA-2026:3896
AlmaLinux:9postgresql-upgrade-devel13.23-2.el9_7ALSA-2026:3730
AlmaLinux:10postgresql1818.3-1.el10_2ALSA-2026:19009
AlmaLinux:10postgresql18-contrib18.3-1.el10_2ALSA-2026:19009
AlmaLinux:10postgresql18-docs18.3-1.el10_2ALSA-2026:19009
AlmaLinux:10postgresql18-plperl18.3-1.el10_2ALSA-2026:19009
AlmaLinux:10postgresql18-plpython318.3-1.el10_2ALSA-2026:19009
AlmaLinux:10postgresql18-private-devel18.3-1.el10_2ALSA-2026:19009
AlmaLinux:10postgresql18-private-libs18.3-1.el10_2ALSA-2026:19009
AlmaLinux:10postgresql18-server18.3-1.el10_2ALSA-2026:19009
AlmaLinux:10postgresql18-server-devel18.3-1.el10_2ALSA-2026:19009
AlmaLinux:10postgresql18-static18.3-1.el10_2ALSA-2026:19009
AlmaLinux:10postgresql18-test18.3-1.el10_2ALSA-2026:19009
AlmaLinux:10postgresql18-test-rpm-macros18.3-1.el10_2ALSA-2026:19009
AlmaLinux:10postgresql18-upgrade18.3-1.el10_2ALSA-2026:19009
AlmaLinux:10postgresql18-upgrade-devel18.3-1.el10_2ALSA-2026:19009
Alpine:v3.20postgresql1515.16-r0, 15.17-r0ALPINE-CVE-2026-2006
Alpine:v3.21postgresql1515.17-r0ALPINE-CVE-2026-2006
Alpine:v3.22postgresql1515.16-r0, 15.17-r0ALPINE-CVE-2026-2006
Alpine:v3.20postgresql1616.12-r0, 16.13-r0ALPINE-CVE-2026-2006
Alpine:v3.21postgresql1616.12-r0, 16.13-r0ALPINE-CVE-2026-2006
Alpine:v3.22postgresql1616.12-r0, 16.13-r0ALPINE-CVE-2026-2006
Alpine:v3.23postgresql1616.12-r0, 16.13-r0ALPINE-CVE-2026-2006
Alpine:v3.24postgresql1616.12-r0, 16.13-r0ALPINE-CVE-2026-2006
Alpine:v3.21postgresql1717.8-r0, 17.9-r0ALPINE-CVE-2026-2006
Alpine:v3.22postgresql1717.8-r0, 17.9-r0ALPINE-CVE-2026-2006
Alpine:v3.23postgresql1717.8-r0, 17.9-r0ALPINE-CVE-2026-2006
Alpine:v3.24postgresql1717.8-r0, 17.9-r0ALPINE-CVE-2026-2006
Alpine:v3.23postgresql1818.2-r0ALPINE-CVE-2026-2006
Alpine:v3.24postgresql1818.2-r0ALPINE-CVE-2026-2006
Debian:12postgresql-1515.16-0+deb12u1DEBIAN-CVE-2026-2006
Debian:12postgresql-1515.16-0+deb12u1DSA-6132-1
Debian:13postgresql-1717.8-0+deb13u1DSA-6133-1
Debian:13postgresql-1717.8-0+deb13u1DEBIAN-CVE-2026-2006
Debian:14postgresql-1818.2-1DEBIAN-CVE-2026-2006
Rocky Linux:8pg_repack0:1.4.6-3.module+el8.9.0+1603+444d1b54RLSA-2026:4024
Rocky Linux:8pg_repack0:1.4.6-3.module+el8.10.0+1862+29bef648RLSA-2026:4064
Rocky Linux:8pg_repack0:1.4.6-3.module+el8.10.0+1862+29bef648RLSA-2026:4024
Rocky Linux:8pg_repack0:1.4.6-3.module+el8.9.0+1603+444d1b54RLSA-2026:4064
Rocky Linux:8pg_repack0:1.4.8-1.module+el8.10.0+1858+fcc46a79RLSA-2026:4059
Rocky Linux:8pg_repack0:1.4.8-1.module+el8.10.0+40056+df351139RLSA-2026:4059
Rocky Linux:8pg_repack0:1.4.8-1.module+el8.9.0+1525+fc91df60RLSA-2026:4059
Rocky Linux:8pg_repack0:1.4.6-3.module+el8.10.0+40055+b85d5ce2RLSA-2026:4024
Rocky Linux:8pg_repack0:1.4.8-1.module+el8.10.0+1622+bd25b19cRLSA-2026:4059
Rocky Linux:8pg_repack0:1.4.6-3.module+el8.9.0+1594+4a6adae9RLSA-2026:4024
Rocky Linux:8pg_repack0:1.4.6-3.module+el8.10.0+40055+b85d5ce2RLSA-2026:4064
Rocky Linux:8pg_repack0:1.5.1-1.module+el8.10.0+1900+d7340343RLSA-2026:4063
Rocky Linux:8pg_repack0:1.5.1-1.module+el8.10.0+40057+c37a0e3dRLSA-2026:4063
Rocky Linux:8pg_repack0:1.4.6-3.module+el8.9.0+1594+4a6adae9RLSA-2026:4064
Rocky Linux:9pg_repack0:1.5.1-1.module+el9.7.0+40012+a654bbaaRLSA-2026:4110
Rocky Linux:9pg_repack0:1.4.8-2.module+el9.7.0+40011+28af63c9RLSA-2026:3896
Rocky Linux:9pg_repack0:1.5.1-1.module+el9.7.0+40060+39463e08RLSA-2026:4110
Rocky Linux:8pgaudit0:1.5.0-1.module+el8.9.0+1594+4a6adae9RLSA-2026:4024
Rocky Linux:8pgaudit0:16.0-1.module+el8.10.0+1858+fcc46a79RLSA-2026:4063
Rocky Linux:8pgaudit0:16.0-1.module+el8.10.0+1622+bd25b19cRLSA-2026:4063
Rocky Linux:8pgaudit0:1.7.0-1.module+el8.10.0+40056+df351139RLSA-2026:4059

Affected products (as reported)

VendorProductVersions
n/a PostgreSQL 18 – before 18.217 – before 17.816 – before 16.1215 – before 15.160 – before 14.21

Weakness: CWE-129, CWE-1285 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References