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CVE-2026-45266

Nextcloud is an open source content collaboration platform. Prior to versions 21.1.10, 22.0.11, and 23.0.3, a low-privileged user can force other user's microphones to be muted in calls when no High-performance Backend is installed. This issue has been patched in versions 21.1.10, 22.0.11, and 23.0.3.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:66f65a6ac86c51dfd8e9f8f413ed7ded8ef48b5f746f2f99d3e7050be1b426d5
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"security-advisories","vendor":"nextcloud","versions":[{"status":"affected","version":"< 21.1.10"},{"status":"affected","version":"< 22.0.11"},{"status":"affected","version":"< 23.0.3"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fce69cb52e7947df049f7757cdc69dc67694d10c2d5d4eb744fb084a75d2d206 · sha256:8e9b2ea1fab371aa… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.5,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:fce69cb52e7947df049f7757cdc69dc67694d10c2d5d4eb744fb084a75d2d206 · sha256:8e9b2ea1fab371aa… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-284","description":"CWE-284: Improper Access Control","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:fce69cb52e7947df049f7757cdc69dc67694d10c2d5d4eb744fb084a75d2d206 · sha256:8e9b2ea1fab371aa… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x75r-65hm-cw35","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x75r-65hm-cw35"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fce69cb52e7947df049f7757cdc69dc67694d10c2d5d4eb744fb084a75d2d206 · sha256:8e9b2ea1fab371aa… · /containers/cna/references/0
{"name":"https://github.com/nextcloud/spreed/pull/17577","tags":["x_refsource_MISC"],"url":"https://github.com/nextcloud/spreed/pull/17577"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fce69cb52e7947df049f7757cdc69dc67694d10c2d5d4eb744fb084a75d2d206 · sha256:8e9b2ea1fab371aa… · /containers/cna/references/1
{"name":"https://hackerone.com/reports/3636758","tags":["x_refsource_MISC"],"url":"https://hackerone.com/reports/3636758"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fce69cb52e7947df049f7757cdc69dc67694d10c2d5d4eb744fb084a75d2d206 · sha256:8e9b2ea1fab371aa… · /containers/cna/references/2

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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