CVE-2026-19278

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreMEDIUM confidence

Score 6.8 from GitHub Security Advisory published 2026-08-10. A secondary CVSS source baseline 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%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.

A flaw was found in StackRox/RHACS Central's Auth Machine-to-Machine (M2M) token exchange. When an administrator configures M2M role mappings, the system uses unanchored regular expressions for matching claim values. This allows an attacker with a valid OpenID Connect (OIDC) token, whose claim value is a superstring of a configured pattern, to gain unauthorized access to roles they were not intended to receive. This can lead to privilege escalation within the system.

CVSS v3
6.8
EG Score
6.8MEDIUMmedium confidence
EG Risk
31
EG Risk 31/100CISA SSVC

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
Severity68% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
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
0.3%
EPSS %ILE
26th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* 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, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 10, 2026

Last Modified

August 14, 2026

Advisory Details (2)

Auto-updated Aug 10, 2026
No fix on record yet. Sources: redhat.
redhat

2512524 – (CVE-2026-19278) CVE-2026-19278 stackrox: stackrox: Privilege escalation via unanchored regular expressions in Auth M2M role mappings

https://bugzilla.redhat.com/show_bug.cgi?id=2512524
redhatMentions a patch (unverified)

CVE-2026-19278 - 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-2026-19278

Vendor Advisories for CVE-2026-19278(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 12× in last 7d / 65× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 150 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-19278?
CVE-2026-19278 is a medium vulnerability published on August 10, 2026. A flaw was found in StackRox/RHACS Central's Auth Machine-to-Machine (M2M) token exchange. When an administrator configures M2M role mappings, the system uses unanchored regular expressions for matching claim values. This allows an attacker with a valid OpenID Connect (OIDC) token, whose claim…
When was CVE-2026-19278 disclosed?
CVE-2026-19278 was first published on August 10, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19278 actively exploited?
CVE-2026-19278 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (26th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19278?
CVE-2026-19278 has a CVSS base score of 6.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-19278?
No fix for CVE-2026-19278 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-2026-19278 are linked in the Vendor Advisories panel on this page.

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