CVE-2026-17432: NousResearch hermes-agent · CWE-266
Source GCVE Database
Public exploit available · CVSS 2.3 Low.
Data as of 26 Oct 2026, 11:42 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 29% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 26 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| NousResearchhermes-agent | Affected
| Fixed in– |
GitHubnousresearch/hermes-agentpkg:github/nousresearch/hermes-agentOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
A vulnerability was detected in NousResearch hermes-agent 2026.6.5. Affected by this vulnerability is an unknown functionality of the file hermes-agent/plugins/platforms/simplex/adapter.py of the component SimpleX Gateway Authorization. The manipulation of the argument contactId results in improper access controls. The attack may be launched remotely. A high complexity level is associated with this attack. The exploitation appears to be difficult. The exploit is now public and may be used. The patch is identified as 490c486ff65b766d9de0fe0e6f26e1778aaa8fb3. Applying a patch is advised to resolve this issue.
References
- nvd.nist.gov/vuln/detail/CVE-2026-17432 (opens in a new tab)
- github.com/NousResearch/hermes-agent/issues/44729 (opens in a new tab)
- github.com/NousResearch/hermes-agent/issues/44730 (opens in a new tab)
- github.com/NousResearch/hermes-agent/pull/41246 (opens in a new tab)
- github.com/NousResearch/hermes-agent/commit/490c486ff65b766d9de0fe0e6f26e1778aaa8fb3 (opens in a new tab)
- github.com/NousResearch/hermes-agent (opens in a new tab)
- vuldb.com/cve/CVE-2026-17432 (opens in a new tab)
- vuldb.com/submit/862424 (opens in a new tab)
- vuldb.com/vuln/383065 (opens in a new tab)
- vuldb.com/vuln/383065/cti (opens in a new tab)