ai.exa/exa
version 3.4.1
- scanned 2026-10-16
- source github.com/exa-labs/exa-mcp-server
- commit e9c3b0126a33
- transport streamable-http
- files read 35
- methodology 0.2.0
- ruleset 0.1.1
No tag matching version 3.4.1 was found in this repository, so the scan read the default branch instead. The findings below describe that code, not necessarily the released version.
95
94measured on 80% of this axis
0
75measured on 70% of this axis
43
The evidence
Every deduction below names the artefact that produced it. Nothing on this page was executed: the source was read, never run, and no running server was contacted.
Code Safety
- src/utils/exaResponseSanitizer.ts:182mcp-js-prototype-pollution-merge-loop (medium/medium)
Keys from a caller-supplied object are copied onto a target without excluding __proto__ / constructor / prototype. A tool argument carrying __proto__ then mutates Object.prototype for the whole process, which can turn an unrelated later property read into attacker-controlled data.
for (const field of stringFields) { if (typeof value[field] === "string") { sanitized[field] = value[field]; } }
Auth Posture
- authentication_model
auth enforcement present at a call site in the source (inbound token verification) and documented in the README; "refused without credentials" (`03` §4) established by reading the code rather than by connecting
- transport_security
declared endpoint(s) are HTTPS: https://mcp.exa.ai/mcp; scored 80, not 100: `03` §4 reserves 100 for HTTPS *with HSTS*, and an HSTS header can only be seen by connecting, which `04` §9 does not do. This is an unverifiable band, not an observed absence.
- secret_handling
detect-secrets matched 16 credential-shaped string(s), every one from a keyword or entropy heuristic (Secret Keyword). Those flag placeholders, variable names and content hashes as readily as credentials, so they do not establish the committed credential `03` §4's 0 asserts, and this sub-check is not scored; Secret Keyword at src/tools/agentRun.ts:556; Secret Keyword at src/tools/config.ts:55; Secret Keyword at src/utils/auth.ts:54; Secret Keyword at src/utils/errorHandler.ts:11; Secret Keyword at tests/unit/api/mcp.test.ts:150; Secret Keyword at tests/unit/api/mcp.test.ts:172; Secret Keyword at tests/unit/api/mcp.test.ts:360; Secret Keyword at tests/unit/api/mcp.test.ts:469; Secret Keyword at tests/unit/api/mcp.test.ts:500; Secret Keyword at tests/unit/api/mcp.test.ts:693; …and 6 more matches
- authorization_granularity
11 tool registrations with conditional access logic present in the same source
Dependency Health
Showing the 50 most severe of 122 findings on this axis. The score was computed over all of them — findings beyond the fourth of a severity still deduct at a tenth of their weight — so the remainder is omitted from this page, not from the arithmetic.
- package-lock.jsontar 7.5.13 — GHSA-23hp-3jrh-7fpw
transitive, CVSS 9.2, fixed in 7.5.19
https://osv.dev/vulnerability/GHSA-23hp-3jrh-7fpw - package-lock.jsonproxy-addr 2.0.7 — GHSA-jqcg-44mw-7w3h
transitive, CVSS 9.1, fixed in 2.0.8
https://osv.dev/vulnerability/GHSA-jqcg-44mw-7w3h - package-lock.json@modelcontextprotocol/sdk 1.26.0 — GHSA-6qxp-vccf-f47h
direct, CVSS 7.5, fixed in 1.31.0
https://osv.dev/vulnerability/GHSA-6qxp-vccf-f47h - package-lock.jsonaxios 1.15.2 — GHSA-35jp-ww65-95wh
transitive, CVSS 8.7, fixed in 1.16.0
https://osv.dev/vulnerability/GHSA-35jp-ww65-95wh - package-lock.jsonbraces 3.0.3 — GHSA-vfj7-8cjw-p6xm
transitive, CVSS 8.7
https://osv.dev/vulnerability/GHSA-vfj7-8cjw-p6xm - package-lock.jsonform-data 4.0.5 — GHSA-hmw2-7cc7-3qxx
transitive, CVSS 8.7, fixed in 4.0.6
https://osv.dev/vulnerability/GHSA-hmw2-7cc7-3qxx - package-lock.jsonsource-map-js 1.2.1 — GHSA-68fv-2mgg-jv7q
transitive, CVSS 8.7, fixed in 1.2.2
https://osv.dev/vulnerability/GHSA-68fv-2mgg-jv7q - package-lock.jsontar 7.5.13 — GHSA-8x88-c5mf-7j5w
transitive, CVSS 8.7, fixed in 7.5.18
https://osv.dev/vulnerability/GHSA-8x88-c5mf-7j5w - package-lock.jsonaxios 1.15.2 — GHSA-pjwm-pj3p-43mv
transitive, CVSS 8.6, fixed in 1.16.0
https://osv.dev/vulnerability/GHSA-pjwm-pj3p-43mv - package-lock.jsonaxios 1.15.2 — GHSA-gcfj-64vw-6mp9
transitive, CVSS 8.3, fixed in 1.18.0
https://osv.dev/vulnerability/GHSA-gcfj-64vw-6mp9 - package-lock.jsonaxios 1.15.2 — GHSA-x97p-jq2g-jp4f
transitive, CVSS 8.3, fixed in 1.20.0
https://osv.dev/vulnerability/GHSA-x97p-jq2g-jp4f - package-lock.jsonaxios 1.15.2 — GHSA-542g-h47m-68v8
transitive, CVSS 8.2, fixed in 1.20.0
https://osv.dev/vulnerability/GHSA-542g-h47m-68v8 - package-lock.jsonaxios 1.15.2 — GHSA-mghh-pgcx-3jjj
transitive, CVSS 8.2, fixed in 1.20.0
https://osv.dev/vulnerability/GHSA-mghh-pgcx-3jjj - package-lock.jsonaxios 1.15.2 — GHSA-p92q-9vqr-4j8v
transitive, CVSS 8.2, fixed in 1.16.0
https://osv.dev/vulnerability/GHSA-p92q-9vqr-4j8v - package-lock.jsonnanoid 3.3.11 — GHSA-28wg-ghj8-5hjv
transitive, CVSS 8.2, fixed in 3.3.16
https://osv.dev/vulnerability/GHSA-28wg-ghj8-5hjv - package-lock.jsonnanoid 3.3.11 — GHSA-2v37-7h3g-55p8
transitive, CVSS 8.2, fixed in 3.3.18
https://osv.dev/vulnerability/GHSA-2v37-7h3g-55p8 - package-lock.jsonvite 6.4.2 — GHSA-fx2h-pf6j-xcff
transitive, CVSS 8.2, fixed in 6.4.3
https://osv.dev/vulnerability/GHSA-fx2h-pf6j-xcff - package-lock.jsonbrace-expansion 1.1.14 — GHSA-3jxr-9vmj-r5cp
transitive, CVSS 7.7, fixed in 1.1.16
https://osv.dev/vulnerability/GHSA-3jxr-9vmj-r5cp - package-lock.jsonip-address 10.1.0 — GHSA-mwp4-54f8-5fhr
transitive, CVSS 7.7, fixed in 10.3.1
https://osv.dev/vulnerability/GHSA-mwp4-54f8-5fhr - package-lock.jsonpath-to-regexp 6.1.0 — GHSA-9wv6-86v2-598j
transitive, CVSS 7.7, fixed in 6.3.0
https://osv.dev/vulnerability/GHSA-9wv6-86v2-598j - package-lock.jsonpath-to-regexp 6.2.1 — GHSA-9wv6-86v2-598j
transitive, CVSS 7.7, fixed in 6.3.0
https://osv.dev/vulnerability/GHSA-9wv6-86v2-598j - package-lock.jsonaxios 1.15.2 — GHSA-m8m8-qj5v-23w3
transitive, CVSS 7.6, fixed in 1.20.0
https://osv.dev/vulnerability/GHSA-m8m8-qj5v-23w3 - package-lock.json@fastify/busboy 2.1.1 — GHSA-x8mw-p69m-v3mx
transitive, CVSS 7.5, fixed in 3.2.1
https://osv.dev/vulnerability/GHSA-x8mw-p69m-v3mx - package-lock.jsonaxios 1.15.2 — GHSA-777c-7fjr-54vf
transitive, CVSS 7.5, fixed in 1.16.0
https://osv.dev/vulnerability/GHSA-777c-7fjr-54vf - package-lock.jsonaxios 1.15.2 — GHSA-hfxv-24rg-xrqf
transitive, CVSS 7.5, fixed in 1.16.0
https://osv.dev/vulnerability/GHSA-hfxv-24rg-xrqf - package-lock.jsonaxios 1.15.2 — GHSA-j5f8-grm9-p9fc
transitive, CVSS 7.5, fixed in 1.16.0
https://osv.dev/vulnerability/GHSA-j5f8-grm9-p9fc - package-lock.jsonbrace-expansion 1.1.14 — GHSA-6j4f-fj2g-mc7p
transitive, CVSS 7.5, fixed in 1.1.19
https://osv.dev/vulnerability/GHSA-6j4f-fj2g-mc7p - package-lock.jsonbrace-expansion 1.1.14 — GHSA-mh99-v99m-4gvg
transitive, CVSS 7.5, fixed in 1.1.17
https://osv.dev/vulnerability/GHSA-mh99-v99m-4gvg - package-lock.jsonbrace-expansion 1.1.14 — GHSA-qhr7-859c-m2p7
transitive, CVSS 7.5, fixed in 1.1.20
https://osv.dev/vulnerability/GHSA-qhr7-859c-m2p7 - package-lock.jsonbrace-expansion 1.1.14 — GHSA-rgw5-rvv9-x895
transitive, CVSS 7.5, fixed in 1.1.18
https://osv.dev/vulnerability/GHSA-rgw5-rvv9-x895 - package-lock.jsonfast-uri 3.1.0 — GHSA-4c8g-83qw-93j6
transitive, CVSS 7.5, fixed in 3.1.3
https://osv.dev/vulnerability/GHSA-4c8g-83qw-93j6 - package-lock.jsonfast-uri 3.1.0 — GHSA-7p8r-x3mc-p8w7
transitive, CVSS 7.5, fixed in 3.1.5
https://osv.dev/vulnerability/GHSA-7p8r-x3mc-p8w7 - package-lock.jsonfast-uri 3.1.0 — GHSA-f65p-4m7j-42xc
transitive, CVSS 7.5, fixed in 3.1.6
https://osv.dev/vulnerability/GHSA-f65p-4m7j-42xc - package-lock.jsonfast-uri 3.1.0 — GHSA-jqff-g426-hqxp
transitive, CVSS 7.5, fixed in 3.1.6
https://osv.dev/vulnerability/GHSA-jqff-g426-hqxp - package-lock.jsonfast-uri 3.1.0 — GHSA-q3j6-qgpj-74h6
transitive, CVSS 7.5, fixed in 3.1.1
https://osv.dev/vulnerability/GHSA-q3j6-qgpj-74h6 - package-lock.jsonfast-uri 3.1.0 — GHSA-qw65-cvwx-89v3
transitive, CVSS 7.5, fixed in 3.1.7
https://osv.dev/vulnerability/GHSA-qw65-cvwx-89v3 - package-lock.jsonfast-uri 3.1.0 — GHSA-v2hh-gcrm-f6hx
transitive, CVSS 7.5, fixed in 3.1.4
https://osv.dev/vulnerability/GHSA-v2hh-gcrm-f6hx - package-lock.jsonfast-uri 3.1.0 — GHSA-v39h-62p7-jpjc
transitive, CVSS 7.5, fixed in 3.1.2
https://osv.dev/vulnerability/GHSA-v39h-62p7-jpjc - package-lock.jsonpostcss 8.5.12 — GHSA-r28c-9q8g-f849
transitive, CVSS 7.5, fixed in 8.5.18
https://osv.dev/vulnerability/GHSA-r28c-9q8g-f849 - package-lock.jsonsemver 7.3.5 — GHSA-c2qf-rxjj-qqgw
transitive, CVSS 7.5, fixed in 7.5.2
https://osv.dev/vulnerability/GHSA-c2qf-rxjj-qqgw - package-lock.jsontar 7.5.13 — GHSA-r292-9mhp-454m
transitive, CVSS 7.5, fixed in 7.5.21
https://osv.dev/vulnerability/GHSA-r292-9mhp-454m - package-lock.jsonundici 5.28.4 — GHSA-v9p9-hfj2-hcw8
transitive, CVSS 7.5, fixed in 6.24.0
https://osv.dev/vulnerability/GHSA-v9p9-hfj2-hcw8 - package-lock.jsonundici 5.28.4 — GHSA-vrm6-8vpv-qv8q
transitive, CVSS 7.5, fixed in 6.24.0
https://osv.dev/vulnerability/GHSA-vrm6-8vpv-qv8q - package-lock.jsonundici 5.28.4 — GHSA-vxpw-j846-p89q
transitive, CVSS 7.5, fixed in 6.27.0
https://osv.dev/vulnerability/GHSA-vxpw-j846-p89q - package-lock.jsonuuid 3.3.2 — GHSA-w5hq-g745-h8pq
transitive, CVSS 7.5, fixed in 11.1.1
https://osv.dev/vulnerability/GHSA-w5hq-g745-h8pq - package-lock.jsonnanoid 3.3.11 — GHSA-xwg4-73v4-xw9w
transitive, CVSS 7.4, fixed in 3.3.12
https://osv.dev/vulnerability/GHSA-xwg4-73v4-xw9w - package-lock.jsonhono 4.12.16 — GHSA-88fw-hqm2-52qc
transitive, CVSS 7.1, fixed in 4.12.25
https://osv.dev/vulnerability/GHSA-88fw-hqm2-52qc - package-lock.jsonaxios 1.15.2 — GHSA-3pq3-5fj3-cg6v
transitive, CVSS 7.0, fixed in 1.20.0
https://osv.dev/vulnerability/GHSA-3pq3-5fj3-cg6v - package-lock.jsonvitest 4.1.5 — GHSA-82fw-gwwq-j7x9
direct, CVSS 5.9, fixed in 4.1.11
https://osv.dev/vulnerability/GHSA-82fw-gwwq-j7x9 - package-lock.jsonesbuild 0.14.47 — GHSA-67mh-4wv8-2f99
direct, CVSS 5.3, fixed in 0.25.0
https://osv.dev/vulnerability/GHSA-67mh-4wv8-2f99
Maintenance
- recency
last commit 9 day(s) before 2026-10-16
- issue_responsiveness
median over 42 issue(s) in the last 6 months: 53.4 day(s) to first maintainer comment
- release_cadence
this repository publishes neither releases nor version tags
- bus_factor
10 authors with >= 5 commits in 12 months
- repository_signals
`03` §5 scores this by quartile WITHIN the server's category, which needs a distribution across every scanned server and so cannot be computed while scanning one. It is a post-pass over the crawl and that pass does not exist yet.
Transparency
- license
LICENSE present with no SPDX-License-Identifier tag; identified as 'MIT' from its text
- readme_quality
README.md: installation instructions (+25), configuration documented (+25), exposed tools or resources enumerated (+30), states what the server does in the first 200 words (+20)
- declared_scopes
neither the README nor the MCP manifest documents what the server accesses or what side effects it has
- changelog
no CHANGELOG in the fetched source. `03` §7's partial credit for tagged releases carrying release notes is not applied here — that needs the forge API, which this check does not call
- security_contact
no SECURITY.md and no disclosure contact in the README, so a finder has no route to report a vulnerability privately
Contest a finding
Every number here comes from a rule reading published source, and rules get things wrong. If something on this page is incorrect — or correct but mitigated by a check the rule cannot see — open an issue and we answer it in writing. A finding we got wrong is removed and the rule is fixed; one that stands is answered on the record.
Anyone can file: the maintainer, a researcher who disagrees with the classification, or a user who tested the server and could not reproduce it. Name this server and the rule or advisory ID shown beside the finding above. We aim to reply within five business days and to resolve within ten.