CVE-2026-14672

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-08-13. A secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Observable response discrepancy in PostgreSQL SCRAM authentication allows an unauthenticated user to test the existence of a user via observing the SCRAM iteration count. This requires the probed user to have a non-default scram_iterations count, because the authentication challenge for a nonexistent user reports the default scram_iterations. Within major versions 16-18, minor versions before PostgreSQL 18.6, 17.11, and 16.15 are affected. Versions before PostgreSQL 16 are unaffected.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100CISA SSVC

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
Severity53% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
15th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 13, 2026

Last Modified

August 29, 2026

Advisory Details (1)

Auto-updated Aug 13, 2026
Patch available.
generic

PostgreSQL: CVE-2026-14672: PostgreSQL observable response discrepancy with non-default scram_iterations provides user existence oracle

https://www.postgresql.org/support/security/CVE-2026-14672/

Vendor Advisories for CVE-2026-14672(2)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntupostgresql-server-dev-16 (16.15-0ubuntu0.24.04.1) @ noble2026-10-06ubuntu

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

(10 across 6 ecosystems)
Alpine:v3.21(2)
PackageVulnerable rangeFix by version rangeDependents
postgresql16—
  • every version up to 16.15-r0: fixed in 16.15-r0
—
postgresql17—
  • every version up to 17.11-r0: fixed in 17.11-r0
—
Alpine:v3.22(2)
PackageVulnerable rangeFix by version rangeDependents
postgresql16—
  • every version up to 16.15-r0: fixed in 16.15-r0
—
postgresql17—
  • every version up to 17.11-r0: fixed in 17.11-r0
—
Alpine:v3.23(2)
PackageVulnerable rangeFix by version rangeDependents
postgresql17—
  • every version up to 17.11-r0: fixed in 17.11-r0
—
postgresql18—
  • every version up to 18.5-r0: fixed in 18.5-r0
—
Alpine:v3.24(2)
PackageVulnerable rangeFix by version rangeDependents
postgresql17—
  • every version up to 17.11-r0: fixed in 17.11-r0
—
postgresql18—
  • every version up to 18.5-r0: fixed in 18.5-r0
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
postgresql-1717.10-0+deb13u1 ... 17.9-0+deb13u1 (7 versions)
  • every version up to 17.11-0+deb13u1: fixed in 17.11-0+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
postgresql-1818.0-1 ... 18~~devel.20250502-1 (20 versions)
  • every version up to 18.6-1: fixed in 18.6-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 14× in last 7d / 82× 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 179 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-14672?
CVE-2026-14672 is a medium vulnerability published on August 13, 2026. Observable response discrepancy in PostgreSQL SCRAM authentication allows an unauthenticated user to test the existence of a user via observing the SCRAM iteration count. This requires the probed user to have a non-default scramiterations count, because the authentication challenge for a…
When was CVE-2026-14672 disclosed?
CVE-2026-14672 was first published 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-2026-14672 actively exploited?
CVE-2026-14672 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (15th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-14672?
CVE-2026-14672 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-14672?
A fix for CVE-2026-14672 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-14672 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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