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CVE-2026-44283

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
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f3fc5002b241fef773760c7b0fcc7a7e12ae9f0c0e7ef0f4e21b6a08aec031d8
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"etcd","vendor":"etcd-io","versions":[{"status":"affected","version":"< 3.4.44"},{"status":"affected","version":">= 3.5.0, <= 3.5.29"},{"status":"affected","version":">= 3.6.0, <= 3.6.10"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:40a2af54f99fe1d86550902fe79a3cdadadeee55843dacbd1226a396ae327710 · sha256:0130cf7c9a3e9a8e… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":0,"baseSeverity":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:40a2af54f99fe1d86550902fe79a3cdadadeee55843dacbd1226a396ae327710 · sha256:0130cf7c9a3e9a8e… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:40a2af54f99fe1d86550902fe79a3cdadadeee55843dacbd1226a396ae327710 · sha256:0130cf7c9a3e9a8e… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/etcd-io/etcd/security/advisories/GHSA-x35m-3gp4-4fh5","tags":["x_refsource_CONFIRM"],"url":"https://github.com/etcd-io/etcd/security/advisories/GHSA-x35m-3gp4-4fh5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:40a2af54f99fe1d86550902fe79a3cdadadeee55843dacbd1226a396ae327710 · sha256:0130cf7c9a3e9a8e… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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