CVE-2026-6471

HIGHPre-NVD 7.27.2
EchelonGraph scoreMEDIUM confidence

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

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-08-13. A secondary CVSS source baseline 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this weekElevated

Also known asEUVD-2026-57857 (ENISA EUVD) · GHSA-r26j-h78w-pjqm (GitHub Security Advisories)Source: ENISA EUVD

7.2EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • Public exploit or proof-of-concept code is available
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.2Exploit: Public PoCExposed services: Not assessed

A fix is available — apply it.

Missing authorization in PostgreSQL logical decoding allows a non-superuser holding REPLICATION privilege to dlopen any file visible to the operating system account running the server, via the choice of logical decoding plugin. This in turn runs arbitrary code as that account. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

CVSS v3
7.2
EG Score
7.2HIGHmedium confidence
EG Risk
48
EG Risk 48/100

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.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
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
0.5%
EPSS %ILE
44th
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
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-28). 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

August 13, 2026

Last Modified

August 29, 2026

Advisory Details (1)

Auto-updated Aug 13, 2026
Patch available.
Web page

PostgreSQL: CVE-2026-6471: PostgreSQL logical decoding can dlopen arbitrary file

https://www.postgresql.org/support/security/CVE-2026-6471/

Patch Availability(25)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntupostgresql-server-dev-18 (18.6-0ubuntu0.26.04.1) @ resolute2026-10-29ubuntu
redhatpostgresql:12-8040020260924163759.522a0ee42026-09-30redhat
redhatansible-automation-platform/bootc-automation-portal-rhel9:17906573742026-09-29redhat
redhatpostgresql:12-8080020260923144922.63b345852026-09-28redhat
redhatpostgresql-0:13.23-1.el9_4.42026-09-28redhat
redhatpostgresql-0:13.23-1.el9_6.52026-09-28redhat
redhatpostgresql-0:13.23-1.el9_2.52026-09-28redhat
redhatpostgresql:12-8060020260923144955.ad008a3a2026-09-28redhat
redhatpostgresql16-0:16.15-1.el10_02026-09-28redhat
redhatrhui5/rhua-rhel9:17902420042026-09-24redhat
redhatpostgresql:16-9040020260922062609.rhel92026-09-23redhat
redhatpostgresql:12-8100020260917081510.489197e62026-09-23redhat
redhatpostgresql:16-9060020260921091101.rhel92026-09-23redhat
redhatpostgresql:15-8080020260921162003.63b345852026-09-23redhat
redhatpostgresql:15-9040020260917091622.rhel92026-09-23redhat
redhatpostgresql:15-9020020260917092006.rhel92026-09-23redhat
redhatpostgresql:15-9080020260903073937.rhel92026-09-22redhat
redhatpostgresql:16-8100020260910192321.489197e62026-09-22redhat
redhatpostgresql:15-8100020260906175012.489197e62026-09-22redhat
redhatpostgresql16-0:16.15-1.el10_22026-09-22redhat
redhatpostgresql-0:13.23-6.el9_82026-09-22redhat
redhatpostgresql:15-9060020260917102335.rhel92026-09-21redhat
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 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:12(1)
PackageVulnerable rangeFix by version rangeDependents
postgresql-1515.10-0+deb12u1 ... 15.9-0+deb12u1 (21 versions)
  • every version up to 15.19-0+deb12u1: fixed in 15.19-0+deb12u1
—
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

(5)

Data Freshness Timeline

(refreshed 13× in last 7d / 64× 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 it from the CNA feed. 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). Most recent first.

Showing the most recent 100 of 322 refreshes 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 222 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  3. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  4. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  5. 2026-10-29 16:26 UTCEG score recompute
  6. 2026-10-29 16:26 UTCVendor advisory
  7. 2026-10-29 16:26 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  8. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  9. 2026-10-28 12:58 UTCEG score recompute
  10. 2026-10-28 12:58 UTCVendor advisory
  11. 2026-10-28 12:58 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  12. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  13. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  14. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  15. 2026-10-25 14:12 UTCEG score recompute
  16. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  17. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  18. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  19. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  20. 2026-10-20 20:26 UTCEG score recompute
  21. 2026-10-20 20:26 UTCVendor advisory
  22. 2026-10-20 20:26 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  23. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  24. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  25. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
Show 75 more
  1. 2026-10-18 03:22 UTCEG score recompute
  2. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  3. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  4. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  5. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  6. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  7. 2026-10-13 11:38 UTCEG score recompute
  8. 2026-10-13 11:38 UTCVendor advisory
  9. 2026-10-13 11:37 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  10. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  11. 2026-10-12 15:47 UTCEG score recompute
  12. 2026-10-11 19:32 UTCEG score recompute
  13. 2026-10-11 16:47 UTCEG score recompute
  14. 2026-10-11 14:08 UTCEG score recompute
  15. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  16. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  17. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  18. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  19. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  20. 2026-10-07 01:28 UTCEG score recompute
  21. 2026-10-07 01:28 UTCVendor advisory
  22. 2026-10-07 01:28 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  23. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  24. 2026-10-06 13:52 UTCEG score recompute
  25. 2026-10-06 13:52 UTCVendor advisory
  26. 2026-10-06 13:52 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  27. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  28. 2026-10-05 14:41 UTCEG score recompute
  29. 2026-10-05 14:41 UTCVendor advisory
  30. 2026-10-05 14:41 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  31. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  32. 2026-10-04 22:24 UTCVendor advisory
  33. 2026-10-04 22:24 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  34. 2026-10-04 07:29 UTCVendor advisory
  35. 2026-10-04 07:29 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  36. 2026-10-03 19:52 UTCEG score recompute
  37. 2026-10-03 19:52 UTCVendor advisory
  38. 2026-10-03 19:52 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  39. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  40. 2026-10-02 19:41 UTCEG score recompute
  41. 2026-10-02 19:41 UTCVendor advisory
  42. 2026-10-02 19:41 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  43. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  44. 2026-10-02 08:04 UTCEG score recompute
  45. 2026-10-02 08:04 UTCVendor advisory
  46. 2026-10-02 08:04 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  47. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  48. 2026-10-01 09:28 UTCVendor advisory
  49. 2026-10-01 09:28 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  50. 2026-09-30 21:50 UTCEG score recompute
  51. 2026-09-30 21:50 UTCVendor advisory
  52. 2026-09-30 21:50 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  53. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  54. 2026-09-29 04:13 UTCEG score recompute
  55. 2026-09-29 04:13 UTCVendor advisory
  56. 2026-09-29 04:13 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  57. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  58. 2026-09-28 12:38 UTCVendor advisory
  59. 2026-09-28 12:38 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  60. 2026-09-28 01:01 UTCEG score recompute
  61. 2026-09-28 01:01 UTCVendor advisory
  62. 2026-09-28 01:01 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  63. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  64. 2026-09-27 09:48 UTCEG score recompute
  65. 2026-09-27 09:48 UTCVendor advisory
  66. 2026-09-27 09:48 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  67. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  68. 2026-09-25 03:36 UTCEG score recompute
  69. 2026-09-25 03:36 UTCVendor advisory
  70. 2026-09-25 03:36 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  71. 2026-09-24 10:03 UTCVendor advisory
  72. 2026-09-24 10:03 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2
  73. 2026-09-23 22:27 UTCEG score recompute
  74. 2026-09-23 22:27 UTCVendor advisory
  75. 2026-09-23 22:27 UTCGHSA enrichmentGHSA-r26j-h78w-pjqm · GitHub severity HIGH · GitHub CVSS 7.2

Publicly available exploits

(2 references)

Public exploit code is referenced for this CVE (2 GitHub PoCs). Defenders should treat patch urgency accordingly.

  • GitHub PoC0xBlackash/CVE-2026-6471
    Published Sep 5, 2026

    CVE-2026-6471

    Open source ↗
  • GitHub PoC0xredash/CVE-2026-6471
    Published Sep 5, 2026

    CVE-2026-6471

    Open source ↗

Frequently asked(5)

What is CVE-2026-6471?
CVE-2026-6471 is a high-severity vulnerability; its CVE record was published on August 13, 2026. Missing authorization in PostgreSQL logical decoding allows a non-superuser holding REPLICATION privilege to dlopen any file visible to the operating system account running the server, via the choice of logical decoding plugin. This in turn runs arbitrary code as that account. Versions before…
When was the CVE record for CVE-2026-6471 published?
The CVE record for CVE-2026-6471 was published on August 13, 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 August 29, 2026; the record at its source may have been updated since.
Is CVE-2026-6471 actively exploited?
CVE-2026-6471 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (44th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-6471?
CVE-2026-6471 has a CVSS base score of 7.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-6471?
A fix for CVE-2026-6471 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-6471 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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