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CVE-2026-26984

LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. Prior to versions 26.0.5, 27.0.2, and 28.0.0, an authenticated user with sufficient privileges can exploit a path traversal vulnerability to upload a malicious file to an arbitrary location on the server. Once uploaded, the file can be used to achieve remote code execution (RCE). An attacker must be authenticated and have the appropriate p
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c59c93599ae14d8696b6b3ed33271fe85417a566ea64c7ffdfe44ab139afcb06
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:v2:67513d4cee80e1ffdc12b2037a1b0088363fa2f2e93f03a551b9bf019142e38b · sha256:949841fde06a5522… · /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:v2:67513d4cee80e1ffdc12b2037a1b0088363fa2f2e93f03a551b9bf019142e38b · sha256:949841fde06a5522… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"Loris","vendor":"aces","versions":[{"status":"affected","version":"< 26.0.5"},{"status":"affected","version":">= 27.0.0, < 27.0.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:67513d4cee80e1ffdc12b2037a1b0088363fa2f2e93f03a551b9bf019142e38b · sha256:949841fde06a5522… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:67513d4cee80e1ffdc12b2037a1b0088363fa2f2e93f03a551b9bf019142e38b · sha256:949841fde06a5522… · /containers/cna/metrics/0/cvssV3_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:v2:67513d4cee80e1ffdc12b2037a1b0088363fa2f2e93f03a551b9bf019142e38b · sha256:949841fde06a5522… · /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:v2:67513d4cee80e1ffdc12b2037a1b0088363fa2f2e93f03a551b9bf019142e38b · sha256:949841fde06a5522… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/aces/Loris/releases/tag/v26.0.5","tags":["x_refsource_MISC"],"url":"https://github.com/aces/Loris/releases/tag/v26.0.5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67513d4cee80e1ffdc12b2037a1b0088363fa2f2e93f03a551b9bf019142e38b · sha256:949841fde06a5522… · /containers/cna/references/1
{"name":"https://github.com/aces/Loris/releases/tag/v27.0.2","tags":["x_refsource_MISC"],"url":"https://github.com/aces/Loris/releases/tag/v27.0.2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67513d4cee80e1ffdc12b2037a1b0088363fa2f2e93f03a551b9bf019142e38b · sha256:949841fde06a5522… · /containers/cna/references/2
{"name":"https://github.com/aces/Loris/security/advisories/GHSA-mpgc-c48m-6v2h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/aces/Loris/security/advisories/GHSA-mpgc-c48m-6v2h"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67513d4cee80e1ffdc12b2037a1b0088363fa2f2e93f03a551b9bf019142e38b · sha256:949841fde06a5522… · /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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