feat(pair-corpus-honesty): add vibe-py, vfc-js and agent-vfc slices with mechanism vocabulary

Tasks 1.1, 5.1, 5.2, 5.4 and the data half of 5.3.

- mechanisms.toml: closed vocabulary v1 (20 ids) every expected row cites.
- vibe-py: 35 Real-Vuln-Benchmark pairs (Apache-2.0), human provenance only
  because the LLM-generated repositories carry no license (escalated).
- vfc-js: 17 Node fix-commit pairs harvested upstream (MIT/Apache-2.0),
  SecBench.js itself is not vendored (no license); sinks derived on 13/17.
- agent-vfc: 29 agent-trailer fixes as catalog-candidates.toml plus
  REVIEW.md; the loaded catalog stays empty until a human reviews them.
- datasets.toml and README document every slice and its review status.

Co-Authored-By: Claude Fable 5.1 <[email protected]>
Claude-Session: https://claude.ai/code/session_01T7XD7x5KonMdmGRkp63EQG

benchmarks/pairs/vfc-js/glance-3-0-0/fixed.js

@@ -0,0 +1,92 @@
+// Provenance: jarofghosts/glance  (fixed).
+// repo: jarofghosts/glance
+// commit: 8cfd88e44ebd3f07e3a2eaf376a3e758b6c4ca19
+// parent: 7e69a5539236386e747fb240ae87ea65ed64bb2c
+// commit_url: https://github.com/jarofghosts/glance/commit/8cfd88e44ebd3f07e3a2eaf376a3e758b6c4ca19
+// cve: CVE-2018-3715
+// license: MIT
+// function: Glance$serveRequest
+// relpath: index.js
+// provenance: human
+// mechanism: path_join_user_input
+// upstream_start: 60
+
+Glance.prototype.serveRequest = function Glance$serveRequest (req, res) {
+  var request = {}
+  var self = this
+
+  request.fullPath = path.join(
+    self.dir,
+    decodeURIComponent(parse(req.url).pathname)
+  )
+
+  request.ip = req.socket.remoteAddress
+  request.method = req.method.toLowerCase()
+  request.response = res
+
+  // prevent traversing directories that are parents of the root
+  if (request.fullPath.slice(0, self.dir.length) !== self.dir) {
+    return self.emit('error', 403, request, res)
+  }
+
+  if (request.method !== 'get') {
+    return self.emit('error', 405, request, res)
+  }
+
+  if (self.nodot && /^\./.test(path.basename(request.fullPath))) {
+    return self.emit('error', 404, request, res)
+  }
+
+  fs.stat(request.fullPath, statFile)
+
+  function statFile (err, stat) {
+    if (err) {
+      return self.emit('error', 404, request, res)
+    }
+
+    if (!stat.isDirectory()) {
+      self.emit('read', request)
+
+      return filed(request.fullPath).pipe(res)
+    }
+
+    if (self.hideindex) {
+      return self.emit('error', 403, request, res)
+    }
+
+    if (!self.indices || !self.indices.length) {
+      return listFiles()
+    }
+
+    var indices = self.indices.slice()
+
+    findIndex(indices.shift())
+
+    function findIndex (indexTest) {
+      fileExists(path.join(request.fullPath, indexTest), check)
+
+      function check (hasIndex) {
+        if (hasIndex) {
+          req.url = req.url + '/' + indexTest
+
+          return self.serveRequest(req, res)
+        }
+
+        if (!indices.length) {
+          return listFiles()
+        }
+
+        findIndex(indices.shift())
+      }
+    }
+
+    function listFiles () {
+      var listPath = request.fullPath.replace(/\/$/, '')
+
+      res.writeHead(200, RESPONSE_HEADERS)
+      htmlls(listPath, {hideDot: self.nodot}).pipe(res)
+
+      return self.emit('read', request)
+    }
+  }
+}

benchmarks/pairs/vfc-js/glance-3-0-0/vuln.js

@@ -0,0 +1,87 @@
+// Provenance: jarofghosts/glance  (vuln).
+// repo: jarofghosts/glance
+// commit: 7e69a5539236386e747fb240ae87ea65ed64bb2c
+// parent: 7e69a5539236386e747fb240ae87ea65ed64bb2c
+// commit_url: https://github.com/jarofghosts/glance/commit/8cfd88e44ebd3f07e3a2eaf376a3e758b6c4ca19
+// cve: CVE-2018-3715
+// license: MIT
+// function: Glance$serveRequest
+// relpath: index.js
+// provenance: human
+// mechanism: path_join_user_input
+// upstream_start: 60
+
+Glance.prototype.serveRequest = function Glance$serveRequest (req, res) {
+  var request = {}
+  var self = this
+
+  request.fullPath = path.join(
+    self.dir,
+    decodeURIComponent(parse(req.url).pathname)
+  )
+
+  request.ip = req.socket.remoteAddress
+  request.method = req.method.toLowerCase()
+  request.response = res
+
+  if (request.method !== 'get') {
+    return self.emit('error', 405, request, res)
+  }
+
+  if (self.nodot && /^\./.test(path.basename(request.fullPath))) {
+    return self.emit('error', 404, request, res)
+  }
+
+  fs.stat(request.fullPath, statFile)
+
+  function statFile (err, stat) {
+    if (err) {
+      return self.emit('error', 404, request, res)
+    }
+
+    if (!stat.isDirectory()) {
+      self.emit('read', request)
+
+      return filed(request.fullPath).pipe(res)
+    }
+
+    if (self.hideindex) {
+      return self.emit('error', 403, request, res)
+    }
+
+    if (!self.indices || !self.indices.length) {
+      return listFiles()
+    }
+
+    var indices = self.indices.slice()
+
+    findIndex(indices.shift())
+
+    function findIndex (indexTest) {
+      fileExists(path.join(request.fullPath, indexTest), check)
+
+      function check (hasIndex) {
+        if (hasIndex) {
+          req.url = req.url + '/' + indexTest
+
+          return self.serveRequest(req, res)
+        }
+
+        if (!indices.length) {
+          return listFiles()
+        }
+
+        findIndex(indices.shift())
+      }
+    }
+
+    function listFiles () {
+      var listPath = request.fullPath.replace(/\/$/, '')
+
+      res.writeHead(200, RESPONSE_HEADERS)
+      htmlls(listPath, {hideDot: self.nodot}).pipe(res)
+
+      return self.emit('read', request)
+    }
+  }
+}