CVE-2026-14669

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-13. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: Elevated riskExposed: 0

A fix is available — apply it.

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 PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
51%
KEV
Not listed

Published

August 13, 2026

Last Modified

August 29, 2026

Advisory Details (1)

Auto-updated Aug 13, 2026
No patch confirmed yet.
generic

PostgreSQL: CVE-2026-14669: PostgreSQL to_char heap buffer overflow executes arbitrary code

https://www.postgresql.org/support/security/CVE-2026-14669/

Vendor Advisories for CVE-2026-14669(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupostgresql-server-dev-18 (18.6-0ubuntu0.26.04.1) @ resolute2026-09-20ubuntu
redhatpostgresql:18-9080020260914093252.rhel92026-09-16redhat
redhatpostgresql:16-9080020260907191505.rhel92026-09-15redhat
redhatpostgresql18-0:18.6-1.el10_22026-09-14redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(11 across 7 ecosystems)
Alpine:v3.21(2)
PackageVulnerable rangeFixed inDependents
postgresql16—16.15-r0—
postgresql17—17.11-r0—
Alpine:v3.22(2)
PackageVulnerable rangeFixed inDependents
postgresql16—16.15-r0—
postgresql17—17.11-r0—
Alpine:v3.23(2)
PackageVulnerable rangeFixed inDependents
postgresql17—17.11-r0—
postgresql18—18.5-r0—
Alpine:v3.24(2)
PackageVulnerable rangeFixed inDependents
postgresql17—17.11-r0—
postgresql18—18.5-r0—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
postgresql-1515.10-0+deb12u1 ... 15.9-0+deb12u1 (21 versions)15.19-0+deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
postgresql-1717.10-0+deb13u1 ... 17.9-0+deb13u1 (7 versions)17.11-0+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
postgresql-1818.0-1 ... 18~~devel.20250502-1 (20 versions)18.6-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(4)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 38× in last 7d / 162× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 210 total refreshes for this CVE.

  1. 2026-09-20 22:11 UTCEG score recompute
  2. 2026-09-20 22:11 UTCVendor advisory
  3. 2026-09-20 22:11 UTCGHSA enrichment
  4. 2026-09-20 10:47 UTCVendor advisory
  5. 2026-09-20 10:47 UTCGHSA enrichment
  6. 2026-09-19 23:11 UTCEG score recompute
  7. 2026-09-19 23:11 UTCVendor advisory
  8. 2026-09-19 23:11 UTCGHSA enrichment
  9. 2026-09-19 11:16 UTCVendor advisory
  10. 2026-09-19 11:16 UTCGHSA enrichment
  11. 2026-09-18 23:22 UTCEG score recompute
  12. 2026-09-18 23:22 UTCVendor advisory
  13. 2026-09-18 23:22 UTCGHSA enrichment
  14. 2026-09-18 19:27 UTCEPSS rescore
  15. 2026-09-18 11:58 UTCVendor advisory
  16. 2026-09-18 11:58 UTCGHSA enrichment
  17. 2026-09-18 00:30 UTCEG score recompute
  18. 2026-09-18 00:30 UTCVendor advisory
  19. 2026-09-18 00:30 UTCGHSA enrichment
  20. 2026-09-17 12:08 UTCVendor advisory
  21. 2026-09-17 12:08 UTCGHSA enrichment
  22. 2026-09-17 00:11 UTCEG score recompute
  23. 2026-09-17 00:11 UTCVendor advisory
  24. 2026-09-17 00:11 UTCGHSA enrichment
  25. 2026-09-16 14:07 UTCEPSS rescore
Show 75 more
  1. 2026-09-16 12:34 UTCEG score recompute
  2. 2026-09-16 12:34 UTCVendor advisory
  3. 2026-09-16 12:34 UTCGHSA enrichment
  4. 2026-09-16 05:14 UTCEPSS rescore
  5. 2026-09-16 01:10 UTCVendor advisory
  6. 2026-09-16 01:10 UTCGHSA enrichment
  7. 2026-09-15 13:05 UTCEG score recompute
  8. 2026-09-15 13:05 UTCVendor advisory
  9. 2026-09-15 13:05 UTCGHSA enrichment
  10. 2026-09-15 00:21 UTCVendor advisory
  11. 2026-09-15 00:21 UTCGHSA enrichment
  12. 2026-09-14 12:17 UTCVendor advisory
  13. 2026-09-14 12:17 UTCGHSA enrichment
  14. 2026-09-14 00:53 UTCEG score recompute
  15. 2026-09-14 00:53 UTCVendor advisory
  16. 2026-09-14 00:53 UTCGHSA enrichment
  17. 2026-09-13 16:46 UTCEPSS rescore
  18. 2026-09-13 13:29 UTCVendor advisory
  19. 2026-09-13 13:29 UTCGHSA enrichment
  20. 2026-09-13 02:05 UTCEG score recompute
  21. 2026-09-13 02:05 UTCVendor advisory
  22. 2026-09-13 02:05 UTCGHSA enrichment
  23. 2026-09-12 15:00 UTCEPSS rescore
  24. 2026-09-12 14:41 UTCVendor advisory
  25. 2026-09-12 14:41 UTCGHSA enrichment
  26. 2026-09-12 03:17 UTCVendor advisory
  27. 2026-09-12 03:17 UTCGHSA enrichment
  28. 2026-09-11 15:53 UTCEG score recompute
  29. 2026-09-11 15:53 UTCVendor advisory
  30. 2026-09-11 15:53 UTCGHSA enrichment
  31. 2026-09-11 14:52 UTCEPSS rescore
  32. 2026-09-11 09:36 UTCEPSS rescore
  33. 2026-09-11 04:29 UTCVendor advisory
  34. 2026-09-11 04:29 UTCGHSA enrichment
  35. 2026-09-10 16:56 UTCEG score recompute
  36. 2026-09-10 16:56 UTCVendor advisory
  37. 2026-09-10 16:56 UTCGHSA enrichment
  38. 2026-09-10 09:34 UTCEPSS rescore
  39. 2026-09-10 05:11 UTCVendor advisory
  40. 2026-09-10 05:11 UTCGHSA enrichment
  41. 2026-09-09 17:47 UTCVendor advisory
  42. 2026-09-09 17:47 UTCGHSA enrichment
  43. 2026-09-09 05:06 UTCEG score recompute
  44. 2026-09-09 05:06 UTCVendor advisory
  45. 2026-09-09 05:06 UTCGHSA enrichment
  46. 2026-09-08 22:00 UTCEPSS rescore
  47. 2026-09-08 04:09 UTCVendor advisory
  48. 2026-09-08 04:09 UTCGHSA enrichment
  49. 2026-09-07 16:37 UTCEG score recompute
  50. 2026-09-07 16:37 UTCVendor advisory
  51. 2026-09-07 16:37 UTCGHSA enrichment
  52. 2026-09-07 16:01 UTCEPSS rescore
  53. 2026-09-06 23:11 UTCEG score recompute
  54. 2026-09-06 23:11 UTCVendor advisory
  55. 2026-09-06 23:11 UTCGHSA enrichment
  56. 2026-09-06 13:47 UTCEPSS rescore
  57. 2026-09-06 11:41 UTCVendor advisory
  58. 2026-09-06 11:41 UTCGHSA enrichment
  59. 2026-09-06 00:16 UTCEG score recompute
  60. 2026-09-06 00:16 UTCVendor advisory
  61. 2026-09-06 00:16 UTCGHSA enrichment
  62. 2026-09-05 12:51 UTCGHSA enrichment
  63. 2026-09-05 00:35 UTCEG score recompute
  64. 2026-09-05 00:35 UTCGHSA enrichment
  65. 2026-09-04 12:38 UTCEG score recompute
  66. 2026-09-04 12:38 UTCGHSA enrichment
  67. 2026-09-04 05:06 UTCEPSS rescore
  68. 2026-09-04 01:13 UTCGHSA enrichment
  69. 2026-09-03 12:40 UTCGHSA enrichment
  70. 2026-09-02 23:18 UTCEG score recompute
  71. 2026-09-02 23:18 UTCGHSA enrichment
  72. 2026-09-02 14:11 UTCEPSS rescore
  73. 2026-09-01 22:58 UTCEG score recompute
  74. 2026-09-01 22:58 UTCVendor advisory
  75. 2026-09-01 22:58 UTCGHSA enrichment

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCHackSpeak/CVE-2026-14669
    First seen Aug 18, 2026

    CVE-2026-14669 - PostgreSQL to_char() timezone abbreviation heap buffer overflow PoC; for authorized security testing

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-14669?
CVE-2026-14669 is a high vulnerability published on August 13, 2026. 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 PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
When was CVE-2026-14669 disclosed?
CVE-2026-14669 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on August 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14669 actively exploited?
CVE-2026-14669 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 49.2% of all scored CVEs.
What is the CVSS score of CVE-2026-14669?
CVE-2026-14669 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-14669?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14669, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-14669

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