CVE-2026-15972

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH 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(high)
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
32%
KEV
Not listed

Published

August 7, 2026

Last Modified

August 10, 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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 27× in last 7d / 54× 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.

  1. 2026-08-20 04:32 UTCEG score recompute
  2. 2026-08-20 04:32 UTCGHSA enrichment
  3. 2026-08-19 17:03 UTCEPSS rescore
  4. 2026-08-19 15:21 UTCGHSA enrichment
  5. 2026-08-19 01:58 UTCEG score recompute
  6. 2026-08-19 01:57 UTCGHSA enrichment
  7. 2026-08-18 13:48 UTCEPSS rescore
  8. 2026-08-18 12:46 UTCGHSA enrichment
  9. 2026-08-17 22:50 UTCEG score recompute
  10. 2026-08-17 22:50 UTCGHSA enrichment
  11. 2026-08-17 13:47 UTCEPSS rescore
  12. 2026-08-17 09:38 UTCGHSA enrichment
  13. 2026-08-16 20:28 UTCEG score recompute
  14. 2026-08-16 20:28 UTCGHSA enrichment
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 07:17 UTCEG score recompute
  17. 2026-08-16 07:17 UTCGHSA enrichment
  18. 2026-08-16 02:14 UTCEPSS rescore
  19. 2026-08-15 18:07 UTCGHSA enrichment
  20. 2026-08-15 04:56 UTCEG score recompute
  21. 2026-08-15 04:56 UTCGHSA enrichment
  22. 2026-08-15 01:30 UTCEPSS rescore
  23. 2026-08-14 15:44 UTCGHSA enrichment
  24. 2026-08-14 02:33 UTCEG score recompute
  25. 2026-08-14 02:33 UTCGHSA enrichment
Show 29 more
  1. 2026-08-13 22:00 UTCEPSS rescore
  2. 2026-08-13 13:22 UTCGHSA enrichment
  3. 2026-08-13 00:11 UTCEG score recompute
  4. 2026-08-13 00:11 UTCGHSA enrichment
  5. 2026-08-12 13:50 UTCEPSS rescore
  6. 2026-08-12 11:01 UTCGHSA enrichment
  7. 2026-08-11 21:49 UTCEG score recompute
  8. 2026-08-11 21:49 UTCGHSA enrichment
  9. 2026-08-11 13:42 UTCEPSS rescore
  10. 2026-08-11 08:39 UTCEG score recompute
  11. 2026-08-11 08:39 UTCGHSA enrichment
  12. 2026-08-11 00:00 UTCEPSS rescore
  13. 2026-08-10 19:28 UTCEG score recompute
  14. 2026-08-10 19:28 UTCGHSA enrichment
  15. 2026-08-10 18:35 UTCEG score recompute
  16. 2026-08-10 18:35 UTCGHSA enrichment
  17. 2026-08-10 14:24 UTCGHSA enrichment
  18. 2026-08-10 01:13 UTCEG score recompute
  19. 2026-08-10 01:13 UTCGHSA enrichment
  20. 2026-08-09 13:46 UTCEPSS rescore
  21. 2026-08-09 12:03 UTCGHSA enrichment
  22. 2026-08-08 22:52 UTCEG score recompute
  23. 2026-08-08 22:52 UTCGHSA enrichment
  24. 2026-08-08 16:37 UTCEPSS rescore
  25. 2026-08-08 09:41 UTCEG score recompute
  26. 2026-08-08 09:41 UTCGHSA enrichment
  27. 2026-08-07 20:30 UTCEG score recompute
  28. 2026-08-07 19:37 UTCEG score recompute
  29. 2026-08-07 19:37 UTCMITRE cvelistV5first tracked

Related CVEs(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 in the National Vulnerability Database on August 7, 2026, with the most recent update on August 10, 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 68.0% 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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