NousResearch hermes-agent file_tools.py _check_sensitive_path symlink
Published Apr 29, 2026
4.8
MEDIUMCVSS 4.0
EPSS 0.17%
Description
A security flaw has been discovered in NousResearch hermes-agent 0.8.0. This affects the function _check_sensitive_path of the file tools/file_tools.py. The manipulation results in symlink following. Attacking locally is a requirement. The exploit has been released to the public and may be used for attacks. Upgrading to version 0.9.0 is able to mitigate this issue. The patch is identified as 311dac197145e19e07df68feba2cd55d896a3cd1. Upgrading the affected component is recommended.
Affected products
-
- Version 0.8.0StatusaffectedConstraints-
- Version 0.9.0StatusunaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NousResearch | Hermes-Agent | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
1 other source (NVD) ▾
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C
1 other source (NVD) ▾
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C
AV:L/AC:L/Au:S/C:N/I:P/A:P/E:POC/RL:OF/RC:C
1 other source (NVD) ▾
AV:L/AC:L/Au:S/C:N/I:P/A:P
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Apr 30, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
Apr–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.17% (0.00172) | 5.99th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.14% (0.00138) | 3.44th | v5 (v2026.06.15) |
| Apr 30, 2026 | 0.01% (0.00013) | 2.14th | v4 (v2025.03.14) |
References (8)
- https://github.com/NousResearch/hermes-agent/ product
- https://github.com/NousResearch/hermes-agent/commit/311dac197145e19e07df68feba2cd55d896a3cd1 patch
- https://github.com/NousResearch/hermes-agent/issues/8734 exploitissue-tracking
- https://github.com/NousResearch/hermes-agent/pull/8829 issue-trackingpatch
- https://github.com/NousResearch/hermes-agent/releases/tag/v2026.4.13 patch
- https://vuldb.com/submit/803270 third-party-advisory
- https://vuldb.com/vuln/360121 vdb-entrytechnical-description
- https://vuldb.com/vuln/360121/cti signaturepermissions-required
| Link | Providers | Tags |
|---|---|---|
| https://github.com/NousResearch/hermes-agent/ | product | |
| https://github.com/NousResearch/hermes-agent/commit/311dac197145e19e07df68feba2cd55d896a3cd1 | patch | |
| https://github.com/NousResearch/hermes-agent/issues/8734 | exploitissue-tracking | |
| https://github.com/NousResearch/hermes-agent/pull/8829 | issue-trackingpatch | |
| https://github.com/NousResearch/hermes-agent/releases/tag/v2026.4.13 | patch | |
| https://vuldb.com/submit/803270 | third-party-advisory | |
| https://vuldb.com/vuln/360121 | vdb-entrytechnical-description | |
| https://vuldb.com/vuln/360121/cti | signaturepermissions-required |
Change history (0)
No recorded changes yet.