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CVE-2026-11461 NousResearch CVE debrief

CVE-2026-11461 is an authorization bypass vulnerability in NousResearch hermes-agent up to 0.12.0. The vulnerability affects the resolve_session_by_title function of the hermes_state.py file in the resume endpoint. Attackers can exploit this vulnerability remotely, and the exploit has been publicly disclosed.

Vendor
NousResearch
Product
hermes-agent
CVSS
LOW 2.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-07
Original CVE updated
2026-07-23
Advisory published
2026-06-07
Advisory updated
2026-07-23

Who should care

Users of NousResearch hermes-agent up to version 0.12.0 should apply patches or mitigations to prevent exploitation of this vulnerability.

Technical summary

The vulnerability has a CVSS score of 2.1 and is classified as LOW severity. It allows for authorization bypass via manipulation of the Title argument in the resolve_session_by_title function of hermes_state.py. The vulnerability can be exploited remotely.

Defensive priority

LOW

Recommended defensive actions

  • Apply patches or updates for NousResearch hermes-agent to version 0.12.0 or later.
  • Restrict access to the resume endpoint.
  • Monitor for suspicious activity on the affected system.

Evidence notes

The CVE record was published on [resourceLinkAnnotations:cve-org] and additional details can be found on [resourceLinkAnnotations:nvd].

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11461 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11461

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-11461 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11461

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.