CVE-2026-15972

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-07. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

Consul Community Edition and Consul Enterprise 1.13.0 through 2.0.2 are vulnerable to an unauthenticated denial of service through unbounded connection acceptance on the external gRPC listeners. A remote attacker may exhaust agent file descriptors, goroutines, and memory by opening many incomplete connections, potentially preventing legitimate clients from connecting. This vulnerability, CVE-2026-15972, is fixed in Consul 2.0.3 and Consul Enterprise 1.21.17, 1.22.11, and 2.0.3.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

August 7, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Aug 7, 2026
No patch confirmed yet.
generic

HCSEC-2026-25 - Multiple vulnerabilities impacting HashiCorp Consul - Security - HashiCorp Discuss

https://discuss.hashicorp.com/t/hcsec-2026-25-multiple-vulnerabilities-impacting-hashicorp-consul/77629

Vendor Advisories for CVE-2026-15972(2)

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

Affected Packages

(1 across 1 ecosystem)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
consul1.10.12+dfsg1-1 ... 1.9.17+dfsg2-1 (7 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 23× in last 7d / 102× 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 156 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-15972?
CVE-2026-15972 is a high vulnerability published on August 7, 2026. Consul Community Edition and Consul Enterprise 1.13.0 through 2.0.2 are vulnerable to an unauthenticated denial of service through unbounded connection acceptance on the external gRPC listeners. A remote attacker may exhaust agent file descriptors, goroutines, and memory by opening many incomplete…
When was CVE-2026-15972 disclosed?
CVE-2026-15972 was first published in the National Vulnerability Database on August 7, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15972 actively exploited?
CVE-2026-15972 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 67.5% of all scored CVEs.
What is the CVSS score of CVE-2026-15972?
CVE-2026-15972 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-15972?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15972, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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