CVE-2026-6476

HIGHNVD 7.27.2
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-05-14. NVD baseline CVSS 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2026-30285 (ENISA EUVD) · GHSA-9crw-q654-rwgr (GitHub Security Advisories)Source: ENISA EUVD

7.2EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.2Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

SQL injection in PostgreSQL pg_createsubscriber allows an attacker with pg_create_subscription rights to execute arbitrary SQL as a superuser. The attack takes effect when pg_createsubscriber next runs. Within major versions 17 and 18, minor versions before PostgreSQL 18.4 and 17.10 are affected. Versions before PostgreSQL 17 are unaffected.

CVSS v3
7.2
EG Score
7.2HIGHmedium confidence
EG Risk
33
EG Risk 33/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity72% × 45%
Impact severity (EG Severity): CVSS 7.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
21st
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.2): severity, escalated by confirmed exploitation. This CVE's 7.2 is its impact severity (EG Severity), not escalated.

EG Severity
7.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-11). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 14, 2026

Last Modified

November 11, 2026

Advisory Details (1)

Auto-updated May 18, 2026
Patch available.
Web page

PostgreSQL: CVE-2026-6476: PostgreSQL pg_createsubscriber allows SQL injection via subscription name

https://www.postgresql.org/support/security/CVE-2026-6476/

Patch Availability(6)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntupostgresql-server-dev-18 (18.4-0ubuntu0.26.04.1) @ resolute2026-11-11ubuntu
redhatpostgresql:18-9080020260914093252.rhel92026-09-16redhat
redhatpostgresql18-0:18.6-1.el10_22026-09-14redhat
redhatpostgresql18-0:18.4-1.el10_22026-06-22redhat
redhatpostgresql:18-9080020260605125734.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

(8 across 6 ecosystems)
Alpine:v3.23(2)
PackageVulnerable rangeFix by version rangeDependents
postgresql17—
  • every version up to 17.10-r0: fixed in 17.10-r0
—
postgresql18—
  • every version up to 18.4-r0: fixed in 18.4-r0
—
Alpine:v3.24(2)
PackageVulnerable rangeFix by version rangeDependents
postgresql17—
  • every version up to 17.10-r0: fixed in 17.10-r0
—
postgresql18—
  • every version up to 18.4-r0: fixed in 18.4-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
postgresql17—
  • every version up to 17.10-r0: fixed in 17.10-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
postgresql17—
  • every version up to 17.10-r0: fixed in 17.10-r0
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
postgresql-1717.5-1 ... 17.9-0+deb13u1 (6 versions)
  • every version up to 17.10-0+deb13u1: fixed in 17.10-0+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
postgresql-1818.0-1 ... 18~~devel.20250502-1 (19 versions)
  • every version up to 18.4-1: fixed in 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 11× in last 7d / 39× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 363 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 263 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  2. 2026-11-11 20:40 UTCEchelonGraph re-scored
  3. 2026-11-11 20:40 UTCVendor advisory
  4. 2026-11-11 20:40 UTCGHSA enrichmentGHSA-9crw-q654-rwgr · GitHub severity HIGH · GitHub CVSS 7.2
  5. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  6. 2026-11-11 16:24 UTCEchelonGraph re-scored
  7. 2026-11-11 16:24 UTCVendor advisory
  8. 2026-11-11 16:24 UTCGHSA enrichmentGHSA-9crw-q654-rwgr · GitHub severity HIGH · GitHub CVSS 7.2
  9. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  10. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  11. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  12. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  13. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  14. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  15. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  16. 2026-11-04 11:21 UTCEchelonGraph re-scored
  17. 2026-11-04 11:21 UTCVendor advisory
  18. 2026-11-04 11:21 UTCGHSA enrichmentGHSA-9crw-q654-rwgr · GitHub severity HIGH · GitHub CVSS 7.2
  19. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  20. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  21. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  22. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  23. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  24. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  25. 2026-10-28 06:36 UTCEchelonGraph re-scored
Show 75 more
  1. 2026-10-28 06:36 UTCVendor advisory
  2. 2026-10-28 06:36 UTCGHSA enrichmentGHSA-9crw-q654-rwgr · GitHub severity HIGH · GitHub CVSS 7.2
  3. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  4. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  5. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  6. 2026-10-25 14:12 UTCEchelonGraph re-scored
  7. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  8. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  9. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  10. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  11. 2026-10-20 18:41 UTCEchelonGraph re-scored
  12. 2026-10-20 18:41 UTCVendor advisory
  13. 2026-10-20 18:41 UTCGHSA enrichmentGHSA-9crw-q654-rwgr · GitHub severity HIGH · GitHub CVSS 7.2
  14. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  15. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  16. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  17. 2026-10-18 03:22 UTCEchelonGraph re-scored
  18. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  19. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  20. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  21. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  22. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  23. 2026-10-13 11:37 UTCEchelonGraph re-scored
  24. 2026-10-13 11:37 UTCVendor advisory
  25. 2026-10-13 11:37 UTCGHSA enrichmentGHSA-9crw-q654-rwgr · GitHub severity HIGH · GitHub CVSS 7.2
  26. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  27. 2026-10-12 15:47 UTCEchelonGraph re-scored
  28. 2026-10-11 19:32 UTCEchelonGraph re-scored
  29. 2026-10-11 16:47 UTCEchelonGraph re-scored
  30. 2026-10-11 14:08 UTCEchelonGraph re-scored
  31. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  32. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  33. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  34. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  35. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  36. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  37. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  38. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  39. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  40. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  41. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  42. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  43. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  44. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  45. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  46. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  47. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  48. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  49. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  50. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  51. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  52. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  53. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  54. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  55. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  56. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  57. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  58. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  59. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  60. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  61. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  62. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  63. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  64. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  65. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  66. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  67. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  68. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  69. 2026-08-23 17:41 UTCEchelonGraph re-scored
  70. 2026-08-23 17:41 UTCVendor advisory
  71. 2026-08-23 17:41 UTCGHSA enrichmentGHSA-9crw-q654-rwgr · GitHub severity HIGH · GitHub CVSS 7.2
  72. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  73. 2026-08-22 01:52 UTCEchelonGraph re-scored
  74. 2026-08-22 01:52 UTCVendor advisory
  75. 2026-08-22 01:52 UTCGHSA enrichmentGHSA-9crw-q654-rwgr · GitHub severity HIGH · GitHub CVSS 7.2

Frequently asked(5)

What is CVE-2026-6476?
CVE-2026-6476 is a high-severity vulnerability; its CVE record was published on May 14, 2026. SQL injection in PostgreSQL pg_createsubscriber allows an attacker with pg_create_subscription rights to execute arbitrary SQL as a superuser. The attack takes effect when pg_createsubscriber next runs. Within major versions 17 and 18, minor versions before PostgreSQL 18.4 and 17.10 are affected.…
When was the CVE record for CVE-2026-6476 published?
The CVE record for CVE-2026-6476 was published on May 14, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 11, 2026; the record at its source may have been updated since.
Is CVE-2026-6476 actively exploited?
CVE-2026-6476 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (21st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-6476?
CVE-2026-6476 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-6476?
A fix for CVE-2026-6476 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-6476 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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