CVE-2026-44283

UNRATEDCVSS · not yet scoredTrending — 3 sources updated this week
—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS v2: —Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.4.44, 3.5.30, and 3.6.11, a vulnerability in etcd allows read access via PrevKv, or lease attachment in Put requests within transaction operations, to bypass RBAC authorization checks. An authenticated user without sufficient read or lease-related permissions may be able to access unauthorized data or attach leases by invoking transaction operations with these features enabled. This vulnerability is fixed in 3.4.44, 3.5.30, and 3.6.11.

CVSS v3
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EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
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EG Risk
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EPSS PROB
0.3%
EPSS %ILE
18th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

EG Severity
Not assessed: no CVSS publishedA missing CVSS is not a severity of zero.
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
No SSVC decision: EchelonGraph has not assessed this CVECISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source: the BOD 26-04 block below.

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 14, 2026

Last Modified

May 15, 2026

References (1)

Vendor Advisories for CVE-2026-44283(2)

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

Affected Packages

(7 across 5 ecosystems)
Go(3)
PackageVulnerable rangeFix by version rangeDependents
go.etcd.io/etcd—
  • every version up to 3.4.44: fixed in 3.4.44
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go.etcd.io/etcd/server/v3—
  • 3.5.0 up to 3.5.30: fixed in 3.5.30
  • 3.6.0 up to 3.6.11: fixed in 3.6.11
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go.etcd.io/etcd/v3—
  • 3.6.0 up to 3.6.11: fixed in 3.6.11
  • 3.5.0 up to 3.5.30: fixed in 3.5.30
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Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
etcd3.3.25+dfsg-6 ... 3.5.5-1 (36 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
etcd3.4.23-4 ... 3.5.5-1 (30 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
etcd3.5.16-10 ... 3.5.30-2 (13 versions)
  • every version on: no fix on record
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Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
etcd3.5.16-10 ... 3.5.16-9 (7 versions)
  • every version up to 3.5.16-11: fixed in 3.5.16-11
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Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 31× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 174 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 75 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  2. 2026-10-19 20:25 UTCOSV refresh
  3. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  4. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  5. 2026-10-18 03:39 UTCEG score recompute
  6. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  7. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  8. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  9. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  10. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  11. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  12. 2026-10-12 16:05 UTCEG score recompute
  13. 2026-10-11 19:47 UTCEG score recompute
  14. 2026-10-11 17:02 UTCEG score recompute
  15. 2026-10-11 14:27 UTCEG score recompute
  16. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  17. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  18. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  19. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  20. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  21. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  22. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  23. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  24. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  25. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 17th percentile
Show 74 more
  1. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  2. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  3. 2026-09-27 01:12 UTCOSV refresh
  4. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  5. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  6. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  7. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  8. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  9. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  10. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  12. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  13. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  14. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  15. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  16. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  17. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  18. 2026-09-07 10:47 UTCOSV refresh
  19. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  20. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  21. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  22. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  23. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  24. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  25. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  26. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  27. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  28. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  29. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  30. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  31. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  32. 2026-08-20 19:36 UTCVendor advisory
  33. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  34. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  35. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  36. 2026-08-16 03:56 UTCVendor advisory
  37. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  38. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  39. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  40. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  41. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  42. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  43. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  44. 2026-08-09 03:54 UTCVendor advisory
  45. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  46. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  47. 2026-08-05 21:36 UTCVendor advisory
  48. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  49. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  50. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  51. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  52. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  53. 2026-08-01 19:20 UTCEG score recompute
  54. 2026-08-01 19:20 UTCVendor advisory
  55. 2026-07-30 16:28 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  56. 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  57. 2026-07-28 15:36 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  58. 2026-07-27 14:13 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  59. 2026-07-26 14:54 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  60. 2026-07-25 14:18 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  61. 2026-07-24 14:17 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  62. 2026-07-23 14:18 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  63. 2026-07-23 03:15 UTCEG score recompute
  64. 2026-07-22 14:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  65. 2026-07-21 15:24 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  66. 2026-07-20 17:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  67. 2026-07-19 14:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  68. 2026-07-19 02:29 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  69. 2026-07-18 10:04 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  70. 2026-07-18 01:29 UTCOSV refresh
  71. 2026-07-16 17:03 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  72. 2026-07-15 16:57 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  73. 2026-07-15 02:00 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  74. 2026-07-13 22:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile

Related CVEs(same product + same CWE)

Frequently asked(4)

What is CVE-2026-44283?
CVE-2026-44283 is a vulnerability whose severity is not yet rated; its CVE record was published on May 14, 2026. etcd is a distributed key-value store for the data of a distributed system. Prior to 3.4.44, 3.5.30, and 3.6.11, a vulnerability in etcd allows read access via PrevKv, or lease attachment in Put requests within transaction operations, to bypass RBAC authorization checks. An authenticated user…
When was the CVE record for CVE-2026-44283 published?
The CVE record for CVE-2026-44283 was published on May 14, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of May 15, 2026; the record at its source may have been updated since.
Is CVE-2026-44283 actively exploited?
CVE-2026-44283 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (18th percentile of EPSS-scored CVEs).
How do I remediate CVE-2026-44283?
A fix for CVE-2026-44283 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-44283 are linked in the Vendor Advisories panel on this page.

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