CVE-2026-74243

HIGHNVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 0.5% (38th percentile of EPSS-scored CVEs). GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
8.2EG
EchelonGraph verdictPlan mitigationRemediate 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: 0.5%CVSS: 8.2Exploit: None knownExposed services: Not assessed

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

A flaw was found in Red Hat Quay. When the SECURITY_SCANNER_V4_PSK (pre-shared key) is not set, a remote unauthenticated attacker can send POST requests to the security scanner notification endpoint. This allows the attacker to flood the notification queue and inject path traversal characters into Clair API URL paths. The primary consequence is worker resource exhaustion and blind path manipulation on the configured Clair host, potentially leading to a denial of service.

CVSS v3
8.2
EG Score
8.2HIGHmedium confidence
EG Risk
52
EG Risk 52/100

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)
Severity82% × 45%
The EG Score, 8.2 of 10.
Exploitation0% × 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: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, 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 low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

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

Published

August 14, 2026

Last Modified

August 20, 2026

Advisory Details (2)

Auto-updated Aug 14, 2026
No fix on record yet. Sources: redhat.
redhat

2516142 – (CVE-2026-74243) CVE-2026-74243 quay: Unauthenticated secscan notification endpoint in Quay when PSK is unset

https://bugzilla.redhat.com/show_bug.cgi?id=2516142
redhatMentions a patch (unverified)

CVE-2026-74243 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-74243

Vendor Advisories for CVE-2026-74243(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 / 88× 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 194 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 94 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  2. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  3. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  4. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  5. 2026-10-06 22:52 UTCEG score recompute
  6. 2026-10-06 22:52 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  7. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  8. 2026-10-06 09:20 UTCEG score recompute
  9. 2026-10-06 09:20 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  10. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  11. 2026-10-05 12:57 UTCEG score recompute
  12. 2026-10-05 12:57 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  13. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  14. 2026-10-04 22:11 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  15. 2026-10-04 07:26 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  16. 2026-10-03 19:40 UTCEG score recompute
  17. 2026-10-03 19:40 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  18. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  19. 2026-10-02 19:09 UTCEG score recompute
  20. 2026-10-02 19:09 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  21. 2026-10-02 07:18 UTCEG score recompute
  22. 2026-10-02 07:18 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  23. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  24. 2026-10-01 09:28 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  25. 2026-09-30 21:39 UTCEG score recompute
Show 75 more
  1. 2026-09-30 21:39 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  2. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  3. 2026-09-29 02:51 UTCEG score recompute
  4. 2026-09-29 02:51 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  5. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  6. 2026-09-28 11:14 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  7. 2026-09-27 23:28 UTCEG score recompute
  8. 2026-09-27 23:28 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  9. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  10. 2026-09-27 09:00 UTCEG score recompute
  11. 2026-09-27 09:00 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  12. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  13. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  14. 2026-09-25 03:21 UTCEG score recompute
  15. 2026-09-25 03:21 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  16. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  17. 2026-09-24 11:19 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  18. 2026-09-23 23:32 UTCEG score recompute
  19. 2026-09-23 23:32 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  20. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  21. 2026-09-23 11:35 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  22. 2026-09-22 23:48 UTCEG score recompute
  23. 2026-09-22 23:48 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  24. 2026-09-22 11:48 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  25. 2026-09-22 00:01 UTCEG score recompute
  26. 2026-09-22 00:01 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  27. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  28. 2026-09-21 12:14 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  29. 2026-09-21 00:28 UTCEG score recompute
  30. 2026-09-21 00:28 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  31. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  32. 2026-09-20 12:41 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  33. 2026-09-20 00:07 UTCEG score recompute
  34. 2026-09-20 00:07 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  35. 2026-09-19 12:20 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  36. 2026-09-19 00:33 UTCEG score recompute
  37. 2026-09-19 00:33 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  38. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  39. 2026-09-18 12:47 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  40. 2026-09-18 00:23 UTCEG score recompute
  41. 2026-09-18 00:23 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  42. 2026-09-17 11:57 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  43. 2026-09-16 23:48 UTCEG score recompute
  44. 2026-09-16 23:48 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  45. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  46. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  47. 2026-09-16 05:02 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  48. 2026-09-15 16:05 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  49. 2026-09-15 04:16 UTCEG score recompute
  50. 2026-09-15 04:16 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  51. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  52. 2026-09-14 16:21 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  53. 2026-09-14 04:34 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  54. 2026-09-13 16:48 UTCEG score recompute
  55. 2026-09-13 16:48 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  56. 2026-09-13 05:02 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  57. 2026-09-12 17:15 UTCEG score recompute
  58. 2026-09-12 17:15 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  59. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  60. 2026-09-12 05:28 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  61. 2026-09-11 17:41 UTCEG score recompute
  62. 2026-09-11 17:41 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  63. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  64. 2026-09-11 05:15 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  65. 2026-09-10 17:28 UTCEG score recompute
  66. 2026-09-10 17:28 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  67. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  68. 2026-09-10 05:26 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  69. 2026-09-09 17:39 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  70. 2026-09-09 04:48 UTCEG score recompute
  71. 2026-09-09 04:48 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  72. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  73. 2026-09-08 04:07 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  74. 2026-09-07 16:20 UTCGHSA enrichmentGHSA-vxqv-j38r-6jmm · GitHub CVSS 6.5
  75. 2026-09-07 00:46 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-74243?
CVE-2026-74243 is a high vulnerability published on August 14, 2026. A flaw was found in Red Hat Quay. When the SECURITYSCANNERV4_PSK (pre-shared key) is not set, a remote unauthenticated attacker can send POST requests to the security scanner notification endpoint. This allows the attacker to flood the notification queue and inject path traversal characters into…
When was the CVE record for CVE-2026-74243 published?
The CVE record for CVE-2026-74243 was published on August 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 August 20, 2026; the record at its source may have been updated since.
Is CVE-2026-74243 actively exploited?
CVE-2026-74243 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-2026-74243?
CVE-2026-74243 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-74243?
No fix for CVE-2026-74243 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 vendor advisories EchelonGraph has for CVE-2026-74243 are linked in the Vendor Advisories panel on this page.

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