CVE-2026-75975

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-02. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source

Also known asEUVD-2026-64772 (ENISA EUVD) · GHSA-f65p-4m7j-42xc (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

fast-uri is a URI parser for Node.js. Its custom parser for bracketed IPv6 literals does not validate the complete IPv6 grammar, so invalid trailing text in an authority can be silently discarded and a malformed attacker-controlled host is turned into a different valid IPv6 destination. For example, a bracketed literal with invalid trailing characters is normalized to the unspecified address, which a Node HTTP client then connects to a local service over loopback, and other malformed literals collapse to private-range addresses. No error is set on the parsed result, so an application checking the error field cannot detect the rewrite. An application that normalizes untrusted URLs before outbound requests, redirects, proxy routing, or address-policy enforcement can be redirected to a local or private IPv6 target, giving a server-side request forgery and address-policy bypass primitive. The affected versions are 2.3.1 up to but not including 2.4.5, 3.0.0 up to but not including 3.1.6, and 4.0.0 up to but not including 4.1.3. The issue is fixed in 2.4.5, 3.1.6, and 4.1.3, which validate bracketed IP literals against the full grammar and mark malformed literals as authority errors. Users should upgrade to a patched version.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.2%
EPSS %ILE
12th
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 (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% 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; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days 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; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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 24, 2026

Last Modified

October 14, 2026

Advisory Details (2)

Auto-updated Aug 24, 2026
Patch available. Sources: github.
GitHub advisoryMentions a patch (unverified)

fast-uri vulnerable to server-side request forgery via malformed IPv6 normalization · Advisory · fastify/fast-uri · GitHub

https://github.com/fastify/fast-uri/security/advisories/GHSA-f65p-4m7j-42xc
Web page

Security Advisories | OpenJS Foundation CVE Numbering Authority

https://cna.openjsf.org/security-advisories.html

Patch Availability(33)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatcluster-observability-operator/distributed-tracing-console-plugin-rhel9:17938249082026-11-05redhat
redhatcluster-observability-operator/distributed-tracing-console-plugin-rhel9:17936619182026-11-04redhat
redhatodf4/odf-console-rhel9:17931268292026-10-29redhat
redhatrhoai/odh-mod-arch-gen-ai-rhel9:17930018962026-10-29redhat
redhatrhoai/odh-mod-arch-model-registry-rhel9:17918534322026-10-21redhat
redhatrhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9:17918254692026-10-21redhat
redhatrhoai/odh-mod-arch-model-registry-rhel9:17918609182026-10-19redhat
redhatansible-automation-platform/bootc-automation-portal-rhel9:17918656602026-10-13redhat
redhatrhdh/rhdh-hub-rhel9:17913114952026-10-08redhat
redhatrhdh/red-hat-developer-hub-backstage-plugin-scaffolder-backend-module-orchestrator:17912496402026-10-06redhat
redhatcluster-observability-operator/troubleshooting-panel-console-plugin-rhel9:17908544942026-10-01redhat
redhatforeman-0:3.18.0.14-1.el9sat2026-10-01redhat
redhatmulticluster-engine/console-mce-rhel9:17901353232026-09-28redhat
redhatmulticluster-engine/console-mce-rhel9:17901330812026-09-28redhat
redhatrhacm2/console-rhel9:17882836122026-09-28redhat
redhatcockpit-image-builder-0:94.4-1.el10_22026-09-24redhat
redhatansible-automation-platform-tech-preview/mcp-server-rhel9:17896690362026-09-23redhat
redhatnetwork-observability/network-observability-console-plugin-rhel9:17899782772026-09-23redhat
redhatopenshift4/nmstate-console-plugin-rhel9:17895928062026-09-22redhat
redhatopenshift4/nmstate-console-plugin-rhel9:17895678492026-09-22redhat
redhatrhdh/rhdh-hub-rhel9:17895542852026-09-21redhat
redhatsatellite/iop-remediations-rhel9:17896150952026-09-17redhat
redhatsatellite/iop-vulnerability-frontend-rhel9:17896609692026-09-17redhat
redhatsatellite/iop-host-inventory-frontend-rhel9:17896245192026-09-17redhat
redhatsatellite/iop-advisor-frontend-rhel9:17896595652026-09-17redhat
redhatsatellite/iop-remediations-rhel9:17896155932026-09-17redhat
redhatrhmtc/openshift-migration-ui-rhel8:17895463732026-09-17redhat
redhatsatellite/iop-vulnerability-frontend-rhel9:17896609832026-09-17redhat
redhatsatellite/iop-host-inventory-frontend-rhel9:17896131072026-09-17redhat
redhatdevspaces/dashboard-rhel9:17891628842026-09-17redhat
npmfast-uri @ 2.4.5 (fixes >= 2.3.1, < 2.4.5)—ghsa
npmfast-uri @ 3.1.6 (fixes >= 3.0.0, < 3.1.6)—ghsa
npmfast-uri @ 4.1.3 (fixes >= 4.0.0, < 4.1.3)—ghsa

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

(3 across 3 ecosystems)
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
node-ajv8.12.0~ds+~2.1.1-5 ... 8.20.0~ds+~cs7.1.6-2 (16 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
node-ajv8.12.0~ds+~2.1.1-5 ... 8.20.0~ds+~cs7.1.3-3 (12 versions)
  • every version up to 8.20.0~ds+~cs7.1.4-1: fixed in 8.20.0~ds+~cs7.1.4-1
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
fast-uri—
  • 2.3.1 up to 2.4.5: fixed in 2.4.5
  • 3.0.0 up to 3.1.6: fixed in 3.1.6
  • 4.0.0 up to 4.1.3: fixed in 4.1.3
—

Weakness Classification(2)

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

Additional Vendor Advisories

(23)

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 9× in last 7d / 37× 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 217 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 117 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 0.2% · 12th percentile
  2. 2026-11-12 03:17 UTCEchelonGraph re-scored
  3. 2026-11-12 03:17 UTCVendor advisory
  4. 2026-11-12 03:17 UTCGHSA enrichmentGHSA-f65p-4m7j-42xc · GitHub severity HIGH · GitHub CVSS 7.5
  5. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  6. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  7. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  8. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  9. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  10. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  11. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  12. 2026-11-05 01:27 UTCEchelonGraph re-scored
  13. 2026-11-05 01:27 UTCVendor advisory
  14. 2026-11-05 01:27 UTCGHSA enrichmentGHSA-f65p-4m7j-42xc · GitHub severity HIGH · GitHub CVSS 7.5
  15. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  16. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  17. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  18. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  19. 2026-11-01 07:39 UTCGHSA enrichmentGHSA-f65p-4m7j-42xc · GitHub severity HIGH · GitHub CVSS 7.5
  20. 2026-11-01 07:39 UTCEchelonGraph re-scored
  21. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  22. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  23. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  24. 2026-10-28 23:37 UTCEchelonGraph re-scored
  25. 2026-10-28 23:37 UTCVendor advisory
Show 75 more
  1. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  2. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  3. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  4. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  5. 2026-10-25 14:02 UTCEchelonGraph re-scored
  6. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  7. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  8. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  9. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  10. 2026-10-21 15:23 UTCEchelonGraph re-scored
  11. 2026-10-21 15:23 UTCVendor advisory
  12. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  13. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  14. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  15. 2026-10-18 03:13 UTCEchelonGraph re-scored
  16. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  17. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  18. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  19. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  20. 2026-10-14 13:33 UTCEchelonGraph re-scored
  21. 2026-10-14 13:33 UTCVendor advisory
  22. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  23. 2026-10-13 07:15 UTCEchelonGraph re-scored
  24. 2026-10-13 07:15 UTCVendor advisory
  25. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  26. 2026-10-12 15:38 UTCEchelonGraph re-scored
  27. 2026-10-11 19:24 UTCEchelonGraph re-scored
  28. 2026-10-11 16:40 UTCEchelonGraph re-scored
  29. 2026-10-11 13:59 UTCEchelonGraph re-scored
  30. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  31. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  32. 2026-10-10 13:13 UTCEchelonGraph re-scored
  33. 2026-10-10 13:13 UTCVendor advisory
  34. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  35. 2026-10-09 05:00 UTCEchelonGraph re-scored
  36. 2026-10-09 05:00 UTCVendor advisory
  37. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  38. 2026-10-08 04:15 UTCEchelonGraph re-scored
  39. 2026-10-08 04:15 UTCVendor advisory
  40. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  41. 2026-10-07 04:51 UTCVendor advisory
  42. 2026-10-06 16:42 UTCEchelonGraph re-scored
  43. 2026-10-06 16:42 UTCVendor advisory
  44. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  45. 2026-10-06 02:56 UTCEchelonGraph re-scored
  46. 2026-10-06 02:56 UTCVendor advisory
  47. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  48. 2026-10-05 09:22 UTCEchelonGraph re-scored
  49. 2026-10-05 09:22 UTCVendor advisory
  50. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  51. 2026-10-04 20:44 UTCVendor advisory
  52. 2026-10-04 05:01 UTCVendor advisory
  53. 2026-10-03 16:33 UTCEchelonGraph re-scored
  54. 2026-10-03 16:33 UTCVendor advisory
  55. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  56. 2026-10-02 21:34 UTCEchelonGraph re-scored
  57. 2026-10-02 21:34 UTCVendor advisory
  58. 2026-10-02 09:14 UTCVendor advisory
  59. 2026-10-01 21:08 UTCEchelonGraph re-scored
  60. 2026-10-01 21:08 UTCVendor advisory
  61. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  62. 2026-10-01 08:26 UTCVendor advisory
  63. 2026-09-30 20:19 UTCEchelonGraph re-scored
  64. 2026-09-30 20:19 UTCVendor advisory
  65. 2026-09-30 07:18 UTCEchelonGraph re-scored
  66. 2026-09-30 07:18 UTCVendor advisory
  67. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  68. 2026-09-29 15:18 UTCVendor advisory
  69. 2026-09-29 01:42 UTCEchelonGraph re-scored
  70. 2026-09-29 01:42 UTCVendor advisory
  71. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  72. 2026-09-28 13:10 UTCVendor advisory
  73. 2026-09-28 01:03 UTCEchelonGraph re-scored
  74. 2026-09-28 01:03 UTCVendor advisory
  75. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 29th percentile

Frequently asked(5)

What is CVE-2026-75975?
CVE-2026-75975 is a high-severity vulnerability; its CVE record was published on August 24, 2026. fast-uri is a URI parser for Node.js. Its custom parser for bracketed IPv6 literals does not validate the complete IPv6 grammar, so invalid trailing text in an authority can be silently discarded and a malformed attacker-controlled host is turned into a different valid IPv6 destination. For…
When was the CVE record for CVE-2026-75975 published?
The CVE record for CVE-2026-75975 was published on August 24, 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 October 14, 2026; the record at its source may have been updated since.
Is CVE-2026-75975 actively exploited?
CVE-2026-75975 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (12th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-75975?
CVE-2026-75975 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-75975?
A fix for CVE-2026-75975 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-75975 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-75975

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