SiYuan versions <= 3.8.1 (fixed in v3.8.2) contain an incomplete blocklist in the IsForbiddenAbsPath() function (kernel/util/path_guard.go), which only blocks conf/conf.json by exact match and does not restrict the TLS private key (conf/key…
Exact source revision recorded 30 Oct 2026 12:51:06 UTC. It does not establish the source's current position. Latest evidence.
euvd · EUVD-2026-70410
PublishedSiYuan versions <= 3.8.1 (fixed in v3.8.2) contain an incomplete blocklist in the IsForbiddenAbsPath() function (kernel/util/path_guard.go), which only blocks conf/conf.json by exact match and does not restrict the TLS private key (conf/key.pem) or CA private key (conf/ca.key) stored in the same conf/ directory. Because the getFile handler skips the blocklist for RoleAdministrator and all authenticated users receive RoleAdministrator in v3.8.1, any user (or any client on a default no-auth-code instance) can retrieve these private keys via POST /api/file/getFile. On deployments with TLS enabled, this allows decryption of captured HTTPS traffic (key.pem) and forging of certificates trusted by clients that imported SiYuan's CA (ca.key).
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Original publisher date fields
datePublished: Sep 3, 2026, 11:22:22 AM
dateUpdated: Sep 3, 2026, 12:12:14 PM
- Source published
- Sep 3, 2026, 11:22:22 AM (timezone not stated)
- Source modified
- Sep 3, 2026, 12:12:14 PM (timezone not stated)
- Observed here
- 30 Oct 2026 12:51:06 UTC
- Source terms
- ENISA EUVD · source terms and attribution apply
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EUVD CVSS 4.0 · 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N