CVE-2026-6474

MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-05-14. NVD baseline CVSS 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

A fix is available — apply it.

Externally-controlled format string in PostgreSQL timeofday() function allows an attacker to retrieve portions of server memory, via crafted timezone zones. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

May 14, 2026

Last Modified

May 18, 2026

Advisory Details (1)

Auto-updated May 18, 2026
No patch confirmed yet.
generic

PostgreSQL: CVE-2026-6474: PostgreSQL timeofday() can disclose portions of server memory

https://www.postgresql.org/support/security/CVE-2026-6474/

Vendor Advisories for CVE-2026-6474(18)

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

Patch Availability(17)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupostgresql-server-dev-14 (14.23-0ubuntu0.22.04.1) @ jammy2026-08-23ubuntu
redhatrhui5/rhua-rhel9:17847950762026-07-23redhat
redhatpostgresql:15-9040020260616071806.rhel92026-06-30redhat
redhatpostgresql:15-9020020260625101129.rhel92026-06-30redhat
redhatpostgresql:15-9060020260622062902.rhel92026-06-29redhat
redhatpostgresql:16-8100020260530205218.489197e62026-06-23redhat
redhatpostgresql18-0:18.4-1.el10_22026-06-22redhat
redhatpostgresql:15-9080020260605124405.rhel92026-06-22redhat
redhatpostgresql16-0:16.14-1.el10_22026-06-22redhat
redhatpostgresql16-0:16.14-1.el10_02026-06-22redhat
redhatpostgresql:16-9040020260612132455.rhel92026-06-17redhat
redhatpostgresql:15-8080020260615085052.63b345852026-06-17redhat
redhatpostgresql:16-9060020260612084605.rhel92026-06-17redhat
redhatpostgresql:15-8100020260605152259.489197e62026-06-16redhat
redhatpostgresql:18-9080020260605125734.rhel92026-06-16redhat
redhatpostgresql:16-9080020260605131007.rhel92026-06-16redhat
redhatpostgresql18-main-18.4-0.1.hum12026-06-03redhat

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

(14 across 9 ecosystems)
Alpine:v3.20(2)
PackageVulnerable rangeFixed inDependents
postgresql15—15.18-r0—
postgresql16—16.14-r0—
Alpine:v3.21(2)
PackageVulnerable rangeFixed inDependents
postgresql16—16.14-r0—
postgresql17—17.10-r0—
Alpine:v3.22(2)
PackageVulnerable rangeFixed inDependents
postgresql16—16.14-r0—
postgresql17—17.10-r0—
Alpine:v3.23(2)
PackageVulnerable rangeFixed inDependents
postgresql17—17.10-r0—
postgresql18—18.4-r0—
Alpine:v3.24(2)
PackageVulnerable rangeFixed inDependents
postgresql17—17.10-r0—
postgresql18—18.4-r0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
postgresql-1313.10-0+deb11u1 ... 13.9-0+deb11u1 (25 versions)13.23-0+deb11u4—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
postgresql-1515.10-0+deb12u1 ... 15.9-0+deb12u1 (20 versions)15.18-0+deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
postgresql-1717.5-1 ... 17.9-0+deb13u1 (6 versions)17.10-0+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
postgresql-1818.0-1 ... 18~~devel.20250502-1 (19 versions)18.4-1—

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 4× in last 7d / 31× 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 245 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-6474?
CVE-2026-6474 is a medium vulnerability published on May 14, 2026. Externally-controlled format string in PostgreSQL timeofday() function allows an attacker to retrieve portions of server memory, via crafted timezone zones. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.
When was CVE-2026-6474 disclosed?
CVE-2026-6474 was first published in the National Vulnerability Database on May 14, 2026, with the most recent update on May 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-6474 actively exploited?
CVE-2026-6474 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 88.0% of all scored CVEs.
What is the CVSS score of CVE-2026-6474?
CVE-2026-6474 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-6474?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6474, 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-2026-6474

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