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CVE-2026-55439

Halo is an open source website building tool. Prior to 2.24.3, a path traversal vulnerability in the backup download endpoint allows authenticated administrators to read arbitrary files from the server filesystem. The backup download endpoint (GET /apis/console.api.migration.halo.run/v1alpha1/backups/{name}/files/{filename}) in MigrationServiceImpl.download() resolves the backup filename via Path.resolve() without validating that the resolved path stays within the designated backups directory. A
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6ce15b447ebbc423b7562cfea966e048b189a3ec1b0bb8d987c1c7954b97e667
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"halo","vendor":"halo-dev","versions":[{"status":"affected","version":"< 2.24.3"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:69def090759fb888b1a8593e319036fa34057557e268bb49f2cedd2783565e43 · sha256:5cea4193e8d02a25… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:69def090759fb888b1a8593e319036fa34057557e268bb49f2cedd2783565e43 · sha256:5cea4193e8d02a25… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:69def090759fb888b1a8593e319036fa34057557e268bb49f2cedd2783565e43 · sha256:5cea4193e8d02a25… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/halo-dev/halo/issues/10064","tags":["x_refsource_MISC"],"url":"https://github.com/halo-dev/halo/issues/10064"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:69def090759fb888b1a8593e319036fa34057557e268bb49f2cedd2783565e43 · sha256:5cea4193e8d02a25… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://github.com/halo-dev/halo/issues/10064"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:69def090759fb888b1a8593e319036fa34057557e268bb49f2cedd2783565e43 · sha256:5cea4193e8d02a25… · /containers/adp/0/references/0
{"name":"https://github.com/halo-dev/halo/security/advisories/GHSA-h8wj-chr2-hf66","tags":["x_refsource_CONFIRM"],"url":"https://github.com/halo-dev/halo/security/advisories/GHSA-h8wj-chr2-hf66"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:69def090759fb888b1a8593e319036fa34057557e268bb49f2cedd2783565e43 · sha256:5cea4193e8d02a25… · /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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