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CVE-2026-47684

Sync-in Server is a secure, open-source platform for file storage, sharing, collaboration, and syncing. Prior to version 2.3.0, the private IP blocklist regex used in the URL download feature does not match IPv4-mapped IPv6 addresses (e.g. ::ffff:127.0.0.1), allowing SSRF protection to be bypassed on dual-stack systems. Version 2.3.0 fixes the issue.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:79e562383fbedaabb55cb9f6b0c3e849cd059f046447ec339eb7f32d4c377269
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"server","vendor":"Sync-in","versions":[{"status":"affected","version":"< 2.3.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1da6f435f79406f50b00975e03f44c3c327f5f136d7024010dc444a91acfe7f3 · sha256:e4142e1298e787fd… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1da6f435f79406f50b00975e03f44c3c327f5f136d7024010dc444a91acfe7f3 · sha256:e4142e1298e787fd… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1da6f435f79406f50b00975e03f44c3c327f5f136d7024010dc444a91acfe7f3 · sha256:e4142e1298e787fd… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/Sync-in/server/releases/tag/v2.3.0","tags":["x_refsource_MISC"],"url":"https://github.com/Sync-in/server/releases/tag/v2.3.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1da6f435f79406f50b00975e03f44c3c327f5f136d7024010dc444a91acfe7f3 · sha256:e4142e1298e787fd… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://github.com/Sync-in/server/security/advisories/GHSA-q4x5-8cj6-52wg"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1da6f435f79406f50b00975e03f44c3c327f5f136d7024010dc444a91acfe7f3 · sha256:e4142e1298e787fd… · /containers/adp/0/references/0
{"name":"https://github.com/Sync-in/server/security/advisories/GHSA-q4x5-8cj6-52wg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/Sync-in/server/security/advisories/GHSA-q4x5-8cj6-52wg"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1da6f435f79406f50b00975e03f44c3c327f5f136d7024010dc444a91acfe7f3 · sha256:e4142e1298e787fd… · /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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