CVE-2026-71194

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreMEDIUM confidence

Score 6.8 from GitHub Security Advisory published 2026-08-13. 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%CVSS: 6.8Exploit: None knownExposed: 0

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

In OpenStack Designate before 22.0.2, the mDNS handler performs pool-blind lookups when resolving record queries and NOTIFY requests. When two zones with the same name exist across different pools, the lookup fails with a deterministic error, causing the handler to return REFUSED for all DNS queries through that path. The _handle_notify path is exploitable via a single unauthenticated UDP packet. This is independently reachable through the cross-tenant zone overlap described in a different recent CVE, and also affects legitimate same-tenant cross-pool configurations. BIND9 views do not mitigate this issue as mDNS is a shared service upstream of any view configuration.

CVSS v3
6.8
EG Score
6.8(medium)
EG Risk
31(Track)
EG Risk 31/100SSVC: 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
Severity68% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

August 12, 2026

Last Modified

September 9, 2026

Advisory Details (3)

Auto-updated Aug 12, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic

oss-security - [OSSA-2026-034] OpenStack Designate: Cross-tenant DNS zone overlap and mDNS DoS via pool scheduling (CVE-2026-71193, CVE-2026-71194)

https://www.openwall.com/lists/oss-security/2026/08/11/6
generic

OSSA-2026-034: Cross-tenant DNS zone overlap and mDNS DoS via pool scheduling — OpenStack Security Advisories 0.0.1.dev368 documentation

https://security.openstack.org/ossa/OSSA-2026-034.html
generic🔴 Active Exploitation

Bug #2160533 “[OSSA-2026-034] Designate cross-tenant DNS zone ov...” : Bugs : Designate

https://launchpad.net/bugs/2160533

Vendor Advisories for CVE-2026-71194(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
designate1:15.0.0-41:15.0.2-0+deb11u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
designate1:20.0.0-21:20.0.0-2+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
designate1:20.0.0-2 ... 1:22.0.0~rc1-3 (11 versions)1:22.0.0-2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 78× 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 106 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-71194?
CVE-2026-71194 is a medium vulnerability published on August 12, 2026. In OpenStack Designate before 22.0.2, the mDNS handler performs pool-blind lookups when resolving record queries and NOTIFY requests. When two zones with the same name exist across different pools, the lookup fails with a deterministic error, causing the handler to return REFUSED for all DNS…
When was CVE-2026-71194 disclosed?
CVE-2026-71194 was first published in the National Vulnerability Database on August 12, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71194 actively exploited?
CVE-2026-71194 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 76.6% of all scored CVEs.
What is the CVSS score of CVE-2026-71194?
CVE-2026-71194 has a CVSS v3 base score of 6.8 (NVD).
How do I remediate CVE-2026-71194?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71194, 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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