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 mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.5Exploit: None knownExposed services: Not assessed

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

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
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100CISA 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
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend 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 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
43rd
KEV
Not listed

CISA SSVCTrack 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). 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 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 rangeFix by version rangeDependents
consul1.10.12+dfsg1-1 ... 1.9.17+dfsg2-1 (7 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 84× 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 193 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

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 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 0.5% probability of exploitation in the next 30 days (43rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-15972?
CVE-2026-15972 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-2026-15972?
No fix for CVE-2026-15972 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-2026-15972 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-2026-15972

Explore →

Is Your Infrastructure Affected by CVE-2026-15972?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs