CVE Explorer

CVE-2026-27734

Beszel is a server monitoring platform. Prior to version 0.18.2, the hub's authenticated API endpoints GET /api/beszel/containers/logs and GET /api/beszel/containers/info pass the user-supplied "container" query parameter to the agent without validation. The agent constructs Docker Engine API URLs using fmt.Sprintf with the raw value instead of url.PathEscape(). Since Go's http.Client does not sanitize `../` sequences from URL paths sent over unix sockets, an authenticated user (including readon

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c6da3ae602985865d0fafb4225bdfa3091e3ace1aa27d90b8c335ae784560f10

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"beszel","vendor":"henrygd","versions":[{"status":"affected","version":"< 0.18.4"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:a511a41d1d6c7406a1703022e689b87799b05bc9bf98de8688ccf050bc8bfaf4 · sha256:377a3cd8a7c5fbf1… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:a511a41d1d6c7406a1703022e689b87799b05bc9bf98de8688ccf050bc8bfaf4 · sha256:377a3cd8a7c5fbf1… · /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:a511a41d1d6c7406a1703022e689b87799b05bc9bf98de8688ccf050bc8bfaf4 · sha256:377a3cd8a7c5fbf1… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/henrygd/beszel/releases/tag/v0.18.4","tags":["x_refsource_MISC"],"url":"https://github.com/henrygd/beszel/releases/tag/v0.18.4"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:a511a41d1d6c7406a1703022e689b87799b05bc9bf98de8688ccf050bc8bfaf4 · sha256:377a3cd8a7c5fbf1… · /containers/cna/references/1

{"name":"https://github.com/henrygd/beszel/security/advisories/GHSA-phwh-4f42-gwf3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/henrygd/beszel/security/advisories/GHSA-phwh-4f42-gwf3"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:a511a41d1d6c7406a1703022e689b87799b05bc9bf98de8688ccf050bc8bfaf4 · sha256:377a3cd8a7c5fbf1… · /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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