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CVE-2026-56768

Seahub before 13.0.23 does not enforce SHARE_LINK_LOGIN_REQUIRED on GET /api/v2.1/share-link-zip-task/, allowing unauthenticated users to bypass authentication. Attackers with a folder share-link token can call the GET endpoint to obtain a fileserver zip token and download entire shared directory trees.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dd7cd4ef682fca21be8f8f1c98e5a3e872c29feae1fe18b10aac96ec6e4b6883
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"H…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c89440fa9ae80cc99905fad2f528c9bba18435db0477e62bac0a6b2c6aba11b4 · sha256:594c8ac1fe67b44a… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c89440fa9ae80cc99905fad2f528c9bba18435db0477e62bac0a6b2c6aba11b4 · sha256:594c8ac1fe67b44a… · /containers/cna/metrics/1/cvssV3_1

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","packageURL":"pkg:github/haiwen/seahub","product":"seahub","repo":"https://github.com/haiwen/seahub","vendor":"haiwen","versions":[{"lessThan":"13.0.23","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c89440fa9ae80cc99905fad2f528c9bba18435db0477e62bac0a6b2c6aba11b4 · sha256:594c8ac1fe67b44a… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"H…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c89440fa9ae80cc99905fad2f528c9bba18435db0477e62bac0a6b2c6aba11b4 · sha256:594c8ac1fe67b44a… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c89440fa9ae80cc99905fad2f528c9bba18435db0477e62bac0a6b2c6aba11b4 · sha256:594c8ac1fe67b44a… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-862","description":"Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c89440fa9ae80cc99905fad2f528c9bba18435db0477e62bac0a6b2c6aba11b4 · sha256:594c8ac1fe67b44a… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"name":"Patch Commit (2)","tags":["patch"],"url":"https://github.com/haiwen/seahub/commit/162cddae0831188d02bb8d451dc2193e197dcc57"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c89440fa9ae80cc99905fad2f528c9bba18435db0477e62bac0a6b2c6aba11b4 · sha256:594c8ac1fe67b44a… · /containers/cna/references/3
{"name":"Patch Commit (1)","tags":["patch"],"url":"https://github.com/haiwen/seahub/commit/b609949cf64ed6a15708d0fb5ea9c179962e23cc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c89440fa9ae80cc99905fad2f528c9bba18435db0477e62bac0a6b2c6aba11b4 · sha256:594c8ac1fe67b44a… · /containers/cna/references/2
{"name":"GitHub Issue","tags":["issue-tracking"],"url":"https://github.com/haiwen/seahub/issues/9050"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c89440fa9ae80cc99905fad2f528c9bba18435db0477e62bac0a6b2c6aba11b4 · sha256:594c8ac1fe67b44a… · /containers/cna/references/1
{"name":"Release Notes","tags":["release-notes"],"url":"https://plus.seafile.com/wiki/publish/seafile-wiki/v5D5/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c89440fa9ae80cc99905fad2f528c9bba18435db0477e62bac0a6b2c6aba11b4 · sha256:594c8ac1fe67b44a… · /containers/cna/references/0
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/seahub-authentication-bypass-in-sharelinkziptaskview-get-method"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c89440fa9ae80cc99905fad2f528c9bba18435db0477e62bac0a6b2c6aba11b4 · sha256:594c8ac1fe67b44a… · /containers/cna/references/4

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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