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CVE-2026-9351

A security flaw has been discovered in NousResearch hermes-agent up to 2026.4.16. This vulnerability affects the function _is_blocked_device of the file tools/file_tools.py of the component read_file Tool. Performing a manipulation results in path traversal. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d6d5679e7c8a220a057d45774e26de33c5ff6bde35ab8d5994d552a2d1fe7969
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":6.5,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1c2f79b01458500adc63dc1764480fda4edbf7941edb821a8067edb9c43e8ea2 · sha256:4b7f7fff69cc648c… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1c2f79b01458500adc63dc1764480fda4edbf7941edb821a8067edb9c43e8ea2 · sha256:4b7f7fff69cc648c… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"baseScore":6.4,"vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1c2f79b01458500adc63dc1764480fda4edbf7941edb821a8067edb9c43e8ea2 · sha256:4b7f7fff69cc648c… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":6.5,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1c2f79b01458500adc63dc1764480fda4edbf7941edb821a8067edb9c43e8ea2 · sha256:4b7f7fff69cc648c… · /containers/cna/metrics/1/cvssV3_1

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*"],"modules":["read_file Tool"],"product":"hermes-agent","vendor":"NousResearch","versions":[{"status":"affected","version":"2026.4.0"},{"status":"affected","version":"2026.4.1"},{"status":"affected","version":"2026.4.2"},{"status":"affected","version":"2026.4.3"},{"status":"affected","version":"2026.4.4"},{"status":"affected","version":"2026.4.5"},{"status":"affected","version":"2026.4.6"},{"status":"affected","version":"2026.4.7"},{"status":"affected","version":"2026.4.8"},{"status":"affected","version":"2026.4.9"},{"status":"affec…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1c2f79b01458500adc63dc1764480fda4edbf7941edb821a8067edb9c43e8ea2 · sha256:4b7f7fff69cc648c… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":6.5,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1c2f79b01458500adc63dc1764480fda4edbf7941edb821a8067edb9c43e8ea2 · sha256:4b7f7fff69cc648c… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1c2f79b01458500adc63dc1764480fda4edbf7941edb821a8067edb9c43e8ea2 · sha256:4b7f7fff69cc648c… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"baseScore":6.4,"vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1c2f79b01458500adc63dc1764480fda4edbf7941edb821a8067edb9c43e8ea2 · sha256:4b7f7fff69cc648c… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":6.5,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1c2f79b01458500adc63dc1764480fda4edbf7941edb821a8067edb9c43e8ea2 · sha256:4b7f7fff69cc648c… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-22","description":"Path Traversal","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1c2f79b01458500adc63dc1764480fda4edbf7941edb821a8067edb9c43e8ea2 · sha256:4b7f7fff69cc648c… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"tags":["exploit"],"url":"https://gist.github.com/YLChen-007/1d1aeff404cb88e06ec2fb3377f49fef"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1c2f79b01458500adc63dc1764480fda4edbf7941edb821a8067edb9c43e8ea2 · sha256:4b7f7fff69cc648c… · /containers/cna/references/3
{"name":"Submit #812214 | NousResearch hermes-agent 2026.4.16 Path Traversal (CWE-22)","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/812214"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1c2f79b01458500adc63dc1764480fda4edbf7941edb821a8067edb9c43e8ea2 · sha256:4b7f7fff69cc648c… · /containers/cna/references/2
{"name":"VDB-365314 | NousResearch hermes-agent read_file Tool file_tools.py _is_blocked_device path traversal","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/365314"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1c2f79b01458500adc63dc1764480fda4edbf7941edb821a8067edb9c43e8ea2 · sha256:4b7f7fff69cc648c… · /containers/cna/references/0
{"name":"VDB-365314 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/365314/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1c2f79b01458500adc63dc1764480fda4edbf7941edb821a8067edb9c43e8ea2 · sha256:4b7f7fff69cc648c… · /containers/cna/references/1

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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