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CVE-2026-45278

Nextcloud is an open source content collaboration platform. From version 6.1.0 to before version 8.2.2, an attacker can craft links that would redirect users to another website, when the victim uses the attackers link to log in via user OIDC. This issue has been patched in version 8.2.2.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a0e0fed51b59cd09ebf54cf6b066535e856c5ab6c74b28ffed7b916a3f54e343
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":">= 6.1.0, < 8.2.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d5be7c4a12b0e85eb23e274a58ad8f24a74c41b2ac6ebd44c9f52a9b790f97b8 · sha256:8044a554cfc60c59… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":3.3,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/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:d5be7c4a12b0e85eb23e274a58ad8f24a74c41b2ac6ebd44c9f52a9b790f97b8 · sha256:8044a554cfc60c59… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-601","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d5be7c4a12b0e85eb23e274a58ad8f24a74c41b2ac6ebd44c9f52a9b790f97b8 · sha256:8044a554cfc60c59… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8wjr-5cg8-4w73","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8wjr-5cg8-4w73"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d5be7c4a12b0e85eb23e274a58ad8f24a74c41b2ac6ebd44c9f52a9b790f97b8 · sha256:8044a554cfc60c59… · /containers/cna/references/0
{"name":"https://github.com/nextcloud/user_oidc/pull/1273","tags":["x_refsource_MISC"],"url":"https://github.com/nextcloud/user_oidc/pull/1273"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d5be7c4a12b0e85eb23e274a58ad8f24a74c41b2ac6ebd44c9f52a9b790f97b8 · sha256:8044a554cfc60c59… · /containers/cna/references/1
{"name":"https://hackerone.com/reports/3464925","tags":["x_refsource_MISC"],"url":"https://hackerone.com/reports/3464925"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d5be7c4a12b0e85eb23e274a58ad8f24a74c41b2ac6ebd44c9f52a9b790f97b8 · sha256:8044a554cfc60c59… · /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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