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CVE-2026-40077

Beszel is a server monitoring platform. Prior to 0.18.7, some API endpoints in the Beszel hub accept a user-supplied system ID and proceed without further checks that the user should have access to that system. As a result, any authenticated user can access these routes for any system if they know the system's ID. System IDs are random 15 character alphanumeric strings, and are not exposed to all users. However, it is theoretically possible for an authenticated user to enumerate a valid system I
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e03984c456f7c060598a48b913509cfc5dabb855af6a8246044cd25f166a8504
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"beszel","vendor":"henrygd","versions":[{"status":"affected","version":"< 0.18.7"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:67512a5526e69c86213684483b370264a0ecf32f9879e5a889b13ca0f0f870df · sha256:bdedace7a365697a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.5,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:67512a5526e69c86213684483b370264a0ecf32f9879e5a889b13ca0f0f870df · sha256:bdedace7a365697a… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-184","description":"CWE-184: Incomplete List of Disallowed Inputs","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:67512a5526e69c86213684483b370264a0ecf32f9879e5a889b13ca0f0f870df · sha256:bdedace7a365697a… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/henrygd/beszel/releases/tag/v0.18.7","tags":["x_refsource_MISC"],"url":"https://github.com/henrygd/beszel/releases/tag/v0.18.7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67512a5526e69c86213684483b370264a0ecf32f9879e5a889b13ca0f0f870df · sha256:bdedace7a365697a… · /containers/cna/references/1
{"name":"https://github.com/henrygd/beszel/security/advisories/GHSA-5f5r-95pg-xrpm","tags":["x_refsource_CONFIRM"],"url":"https://github.com/henrygd/beszel/security/advisories/GHSA-5f5r-95pg-xrpm"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67512a5526e69c86213684483b370264a0ecf32f9879e5a889b13ca0f0f870df · sha256:bdedace7a365697a… · /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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