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CVE-2026-9102

A path traversal vulnerability exists in the Altium Enterprise Server ComparisonService due to missing filename sanitization in the Gerber file upload APIs. A regular authenticated workspace user can supply a crafted filename in the multipart Content-Disposition header to escape the intended temporary upload directory and write arbitrary files to any location on the server filesystem. Because content-controlled files can be written to web-accessible directories, this can be escalated to remo
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:48243d9f20baa58b722390504a90f8f7449bb0a19152566d1b35cb41349ec3fd
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-434","description":"CWE-434 Unrestricted upload of file with dangerous type","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c808ccc25434f21506d6961a4e9265921944f15bcc8e3b0231ff44999462ea9f · sha256:c61ee641246ae0ea… · /containers/cna/problemTypes/1/descriptions/0

{"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:c808ccc25434f21506d6961a4e9265921944f15bcc8e3b0231ff44999462ea9f · sha256:c61ee641246ae0ea… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","modules":["ComparisonService (Gerber upload API)"],"platforms":["Web"],"product":"Altium Enterprise Server","vendor":"Altium","versions":[{"lessThan":"8.0.4","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c808ccc25434f21506d6961a4e9265921944f15bcc8e3b0231ff44999462ea9f · sha256:c61ee641246ae0ea… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.4,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","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:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c808ccc25434f21506d6961a4e9265921944f15bcc8e3b0231ff44999462ea9f · sha256:c61ee641246ae0ea… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-434","description":"CWE-434 Unrestricted upload of file with dangerous type","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c808ccc25434f21506d6961a4e9265921944f15bcc8e3b0231ff44999462ea9f · sha256:c61ee641246ae0ea… · /containers/cna/problemTypes/1/descriptions/0
{"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:c808ccc25434f21506d6961a4e9265921944f15bcc8e3b0231ff44999462ea9f · sha256:c61ee641246ae0ea… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://www.altium.com/platform/security-compliance/security-advisories"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c808ccc25434f21506d6961a4e9265921944f15bcc8e3b0231ff44999462ea9f · sha256:c61ee641246ae0ea… · /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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