{"id":"CVE-2026-14669","title":"Heap buffer overflow in PostgreSQL to_char(timestamptz) allows the party choosing the timezone to execute arbitrary code as the operating system user running the database, via a long POSIX timezone abbreviation","summary":"Heap buffer overflow in PostgreSQL to_char(timestamptz) allows the party choosing the timezone to execute arbitrary code as the operating system user running the database, via a long POSIX timezone abbreviation.  Versions before PostgreS…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-122"],"vendor":"postgresql","product":"postgresql","affected":["postgresql >= 14.0, < 14.24","postgresql >= 15.0, < 15.19","postgresql >= 16.0, < 16.15","postgresql >= 17.0, < 17.11","postgresql >= 18.0, < 18.5"],"patched":["postgresql 18.5"],"published":"2026-08-13","updated":"2026-08-29","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-14669","references":[{"url":"https://www.postgresql.org/support/security/CVE-2026-14669/","label":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-14669.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-14669"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2515317"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-14669"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-14669"},{"url":"https://access.redhat.com/errata/RHSA-2026:67280"},{"url":"https://access.redhat.com/errata/RHSA-2026:67491"},{"url":"https://access.redhat.com/errata/RHSA-2026:67848"},{"url":"https://access.redhat.com/errata/RHSA-2026:69698"},{"url":"https://access.redhat.com/errata/RHSA-2026:70186"},{"url":"https://access.redhat.com/errata/RHSA-2026:69923"},{"url":"https://access.redhat.com/errata/RHSA-2026:69876"},{"url":"https://access.redhat.com/errata/RHSA-2026:69914"},{"url":"https://access.redhat.com/errata/RHSA-2026:69607"},{"url":"https://access.redhat.com/errata/RHSA-2026:69924"},{"url":"https://access.redhat.com/errata/RHSA-2026:70602"},{"url":"https://access.redhat.com/errata/RHSA-2026:70763"},{"url":"https://access.redhat.com/errata/RHSA-2026:70762"},{"url":"https://access.redhat.com/errata/RHSA-2026:70856"},{"url":"https://access.redhat.com/errata/RHSA-2026:70559"},{"url":"https://access.redhat.com/errata/RHSA-2026:71603"}],"tags":["nvd","exploit-available","csaf","vex","red-hat"],"epss":0.00662,"epssPercentile":0.49482,"ingestedAt":"2026-08-29T23:43:53.122Z","exploits":{"github":1,"githubRepos":["https://github.com/HackSpeak/CVE-2026-14669"],"checkedAt":"2026-09-25T08:20:50.342Z"},"exploitAvailable":true,"slug":"CVE-2026-14669","body":"## Overview\n\nHeap buffer overflow in PostgreSQL to_char(timestamptz) allows the party choosing the timezone to execute arbitrary code as the operating system user running the database, via a long POSIX timezone abbreviation.  Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.\n\n## Affected\n\n- `postgresql >= 14.0, < 14.24`\n- `postgresql >= 15.0, < 15.19`\n- `postgresql >= 16.0, < 16.15`\n- `postgresql >= 17.0, < 17.11`\n- `postgresql >= 18.0, < 18.5`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `postgresql 18.5`\n\n## Vendor advisories\n\n- **RHSA-2026:67280** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-09-14 · [advisory](https://access.redhat.com/errata/RHSA-2026:67280)\n- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Self-service automation portal 2 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Self-service automation portal 2 · updated 2026-09-24 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-14669.json)\n- **RHSA-2026:67491** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2026-09-15 · [advisory](https://access.redhat.com/errata/RHSA-2026:67491)\n- **RHSA-2026:67848** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2026-09-16 · [advisory](https://access.redhat.com/errata/RHSA-2026:67848)\n- **RHSA-2026:69698** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6) · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69698)\n- **RHSA-2026:70186** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:70186)\n- **RHSA-2026:69923** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:69923)\n- **RHSA-2026:69876** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:69876)\n- **RHSA-2026:69914** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:69914)\n- **RHSA-2026:69607** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:69607)\n- **RHSA-2026:69924** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:69924)\n- **RHSA-2026:70602** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8) · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70602)\n- **RHSA-2026:70763** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.2) · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70763)\n- **RHSA-2026:70762** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.4) · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70762)\n- **RHSA-2026:70856** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.4) · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70856)\n- **RHSA-2026:70559** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6) · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70559)","depth":"midnight","depthScore":61,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":4957,"id":"CVE-2026-14669","ts":1788887219374,"field":"exploit_available","old":"false","new":"true"},{"seq":3840,"id":"CVE-2026-14669","ts":1788886352293,"field":"exploit_available","old":"true","new":"false"},{"seq":2674,"id":"CVE-2026-14669","ts":1788883016960,"field":"exploit_available","old":"false","new":"true"},{"seq":1703,"id":"CVE-2026-14669","ts":1788882421463,"field":"exploit_available","old":"true","new":"false"},{"seq":810,"id":"CVE-2026-14669","ts":1788881855354,"field":"exploit_available","old":"false","new":"true"}]}