{"id":"CVE-2026-14679","title":"Stack buffer overflow in PostgreSQL argument name matching allows an object creator to achieve unknown impacts via OUT parameter count","summary":"Stack buffer overflow in PostgreSQL argument name matching allows an object creator to achieve unknown impacts via OUT parameter count.  The attack can write only 0x0 and 0x1 bytes.  Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, …","severity":"high","cvss":8.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","cwe":["CWE-121"],"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-2026-14679","references":[{"url":"https://www.postgresql.org/support/security/CVE-2026-14679/","label":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-14679.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-14679"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2515321"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-14679"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-14679"},{"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-2026:70186"},{"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-2026:70762"},{"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"},{"url":"https://access.redhat.com/errata/RHSA-2026:72361"},{"url":"https://access.redhat.com/errata/RHSA-2026:72282"},{"url":"https://access.redhat.com/errata/RHSA-2026:73912"},{"url":"https://access.redhat.com/errata/RHSA-2026:72363"},{"url":"https://access.redhat.com/errata/RHSA-2026:72362"},{"url":"https://access.redhat.com/errata/RHSA-2026:72283"},{"url":"https://access.redhat.com/errata/RHSA-2026:72281"},{"url":"https://access.redhat.com/errata/RHSA-2026:73404"},{"url":"https://access.redhat.com/errata/RHSA-2026:84585"},{"url":"https://access.redhat.com/errata/RHSA-2026:70763"},{"url":"https://access.redhat.com/errata/RHSA-2026:69698"}],"tags":["nvd","csaf","vex","red-hat"],"epss":0.00293,"epssPercentile":0.21788,"ingestedAt":"2026-08-29T23:43:53.459Z","scores":{"nvd":8.2,"vendor":7.1},"slug":"CVE-2026-14679","body":"## Overview\n\nStack buffer overflow in PostgreSQL argument name matching allows an object creator to achieve unknown impacts via OUT parameter count.  The attack can write only 0x0 and 0x1 bytes.  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 · no fix planned: Red Hat Enterprise Linux 6 · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-14679.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-2026:70186** · 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-2026:70762** · 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)\n- **RHSA-2026:72361** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.2) · released 2026-09-28 · [advisory](https://access.redhat.com/errata/RHSA-2026:72361)\n- **RHSA-2026:72282** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) · released 2026-09-28 · [advisory](https://access.redhat.com/errata/RHSA-2026:72282)\n- **RHSA-2026:73912** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) · released 2026-09-30 · [advisory](https://access.redhat.com/errata/RHSA-2026:73912)\n- **RHSA-2026:72363** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) · released 2026-09-28 · [advisory](https://access.redhat.com/errata/RHSA-2026:72363)\n- **RHSA-2026:72362** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8) · released 2026-09-28 · [advisory](https://access.redhat.com/errata/RHSA-2026:72362)\n- **RHSA-2026:84585** · Red Hat · fixed in: Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Enterprise Linux Server Optional (v. 7 ELS) · released 2026-10-19 · [advisory](https://access.redhat.com/errata/RHSA-2026:84585)","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":45.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}