CVE Explorer

CVE-2026-11423

A path traversal vulnerability exists in the Altium Enterprise Server Collaboration Service due to improper handling of user-supplied filenames in the MCAD and Simulation file download flows. A regular authenticated user can submit a collaboration message containing a crafted filename, which is later used to construct the download path on the server without validation, allowing arbitrary files to be read from the server filesystem. Because the readable files include the server's master confi

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f58c42268c0fee5969e5f02eadfb08365cc099b32b80b9366a55d8466b116bb9

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-269","description":"CWE-269 Improper Privilege Management","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:f1b2fcf32947289987327cb34f5bcb9fdae40ba3b118a1aab42ecb8cf5ff3afe · sha256:d75324b41881c5fe… · /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:f1b2fcf32947289987327cb34f5bcb9fdae40ba3b118a1aab42ecb8cf5ff3afe · sha256:d75324b41881c5fe… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","modules":["Collaboration Service (MCAD and Simulation download)"],"platforms":["Web"],"product":"Altium Enterprise Server","vendor":"Altium","versions":[{"lessThan":"8.1.1","status":"affected","version":"0","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:f1b2fcf32947289987327cb34f5bcb9fdae40ba3b118a1aab42ecb8cf5ff3afe · sha256:d75324b41881c5fe… · /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:f1b2fcf32947289987327cb34f5bcb9fdae40ba3b118a1aab42ecb8cf5ff3afe · sha256:d75324b41881c5fe… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions

{"cweId":"CWE-269","description":"CWE-269 Improper Privilege Management","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:f1b2fcf32947289987327cb34f5bcb9fdae40ba3b118a1aab42ecb8cf5ff3afe · sha256:d75324b41881c5fe… · /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:f1b2fcf32947289987327cb34f5bcb9fdae40ba3b118a1aab42ecb8cf5ff3afe · sha256:d75324b41881c5fe… · /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:f1b2fcf32947289987327cb34f5bcb9fdae40ba3b118a1aab42ecb8cf5ff3afe · sha256:d75324b41881c5fe… · /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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