CVE-2026-18378

HIGHNVD 6.87.6
EchelonGraph scoreMEDIUM confidence

“▲” beside the score: it is higher than NVD's CVSS score.

Score 7.6 from GitHub Security Advisory (severity: HIGH) published 2026-07-30. NVD baseline CVSS 6.8; sources differ by 0.8.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this week
7.6EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 6.8Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (Red Hat, Inc.) lists Red Hat Cost Management 4 versions 1790844333 and later as unaffected. No release containing a fix is confirmed on record.

A flaw was found in koku-metrics-operator. The operator's CostManagementMetricsConfig custom resource allows user able to edit the CR to specify an arbitrary upload URL. When authentication.type is set to token (the default), the cluster-global Red Hat Cloud pull-secret bearer token is attached to HTTP requests sent to this user-controlled URL, allowing the attacker to obtain the token.

CVSS v3
6.8
EG Score
7.6HIGHmedium confidence
EG Risk
34
EG Risk 34/100

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 (value × EchelonGraph’s weight)
Severity76% × 45%
The EG Score, 7.6 of 10.
Exploitation0.4% × 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (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: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.5%
EPSS %ILE
38th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (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

July 30, 2026

Last Modified

October 12, 2026

Advisory Details (2)

Auto-updated Jul 30, 2026
No fix on record yet. Sources: redhat.
Red Hat

2509249 – (CVE-2026-18378) CVE-2026-18378 project-koku/koku-metrics-operator: koku-metrics-operator: cluster pull-secret token exfiltration via user-controlled api_url (SSRF / confused deputy)

https://bugzilla.redhat.com/show_bug.cgi?id=2509249
Red HatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-18378

Vendor Advisories for CVE-2026-18378(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 67× 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 240 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 140 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  2. 2026-10-12 21:26 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  3. 2026-10-12 20:57 UTCEG score recompute
  4. 2026-10-12 20:56 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  5. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  6. 2026-10-12 16:27 UTCEG score recompute
  7. 2026-10-11 20:07 UTCEG score recompute
  8. 2026-10-11 17:20 UTCEG score recompute
  9. 2026-10-11 14:52 UTCEG score recompute
  10. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  11. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  12. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  13. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  14. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  15. 2026-10-06 23:53 UTCEG score recompute
  16. 2026-10-06 23:53 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  17. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  18. 2026-10-05 20:01 UTCEG score recompute
  19. 2026-10-05 20:01 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  20. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  21. 2026-10-04 23:58 UTCEG score recompute
  22. 2026-10-04 23:58 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  23. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  24. 2026-10-04 06:41 UTCEG score recompute
  25. 2026-10-04 06:41 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
Show 75 more
  1. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  2. 2026-10-02 16:59 UTCEG score recompute
  3. 2026-10-02 16:59 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  4. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  5. 2026-10-01 14:09 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  6. 2026-10-01 03:07 UTCEG score recompute
  7. 2026-10-01 03:07 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  8. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  9. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  10. 2026-09-29 06:55 UTCEG score recompute
  11. 2026-09-29 06:55 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  12. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  13. 2026-09-28 06:00 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  14. 2026-09-27 19:04 UTCEG score recompute
  15. 2026-09-27 19:04 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  16. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  17. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  18. 2026-09-25 04:58 UTCEG score recompute
  19. 2026-09-25 04:58 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  20. 2026-09-24 08:28 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  21. 2026-09-23 21:31 UTCEG score recompute
  22. 2026-09-23 21:31 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  23. 2026-09-23 02:11 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  24. 2026-09-22 15:15 UTCEG score recompute
  25. 2026-09-22 15:15 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  26. 2026-09-20 11:11 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  27. 2026-09-19 23:48 UTCEG score recompute
  28. 2026-09-19 23:48 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  29. 2026-09-19 00:38 UTCEG score recompute
  30. 2026-09-19 00:38 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  31. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  32. 2026-09-18 13:36 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  33. 2026-09-18 01:23 UTCEG score recompute
  34. 2026-09-18 01:23 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  35. 2026-09-17 01:29 UTCEG score recompute
  36. 2026-09-17 01:29 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  37. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  38. 2026-09-16 05:36 UTCEG score recompute
  39. 2026-09-16 05:36 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  40. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  41. 2026-09-15 03:21 UTCEG score recompute
  42. 2026-09-15 03:21 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  43. 2026-09-14 09:01 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  44. 2026-09-13 22:04 UTCEG score recompute
  45. 2026-09-13 22:04 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  46. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  47. 2026-09-13 11:03 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  48. 2026-09-12 23:54 UTCEG score recompute
  49. 2026-09-12 23:54 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  50. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  51. 2026-09-12 12:52 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  52. 2026-09-12 01:56 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  53. 2026-09-11 15:00 UTCEG score recompute
  54. 2026-09-11 15:00 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  55. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  56. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  57. 2026-09-11 01:27 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  58. 2026-09-10 14:31 UTCEG score recompute
  59. 2026-09-10 14:31 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  60. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  61. 2026-09-10 03:35 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  62. 2026-09-09 07:18 UTCEG score recompute
  63. 2026-09-09 07:18 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  64. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  65. 2026-09-07 20:03 UTCEG score recompute
  66. 2026-09-07 20:03 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  67. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  68. 2026-09-06 16:44 UTCEG score recompute
  69. 2026-09-06 16:44 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  70. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  71. 2026-09-06 05:48 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  72. 2026-09-05 18:50 UTCEG score recompute
  73. 2026-09-05 18:50 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6
  74. 2026-09-05 04:55 UTCEG score recompute
  75. 2026-09-05 04:55 UTCGHSA enrichmentGHSA-8jfr-h5wv-8vhv · GitHub severity HIGH · GitHub CVSS 7.6

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-18378?
CVE-2026-18378 is a high-severity vulnerability; its CVE record was published on July 30, 2026. A flaw was found in koku-metrics-operator. The operator's CostManagementMetricsConfig custom resource allows user able to edit the CR to specify an arbitrary upload URL. When authentication.type is set to token (the default), the cluster-global Red Hat Cloud pull-secret bearer token is attached to…
When was CVE-2026-18378 made public?
CVE-2026-18378 was made public on July 30, 2026: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on July 30, 2026. EchelonGraph's copy of the record carries a last-modified date of October 12, 2026; the record at its source may have been updated since.
Is CVE-2026-18378 actively exploited?
CVE-2026-18378 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (38th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18378?
CVE-2026-18378 has a CVSS v3 base score of 6.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.6 (HIGH).
How do I remediate CVE-2026-18378?
No fix for CVE-2026-18378 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (Red Hat, Inc.) lists Red Hat Cost Management 4 versions 1790844333 and later as unaffected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-18378 are linked in the Vendor Advisories panel on this page.

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