PYSEC-2026-2510
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/hermes-agent/PYSEC-2026-2510.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-2510
- Aliases
- Published
- 2026-07-13T15:46:20.346348Z
- Modified
- 2026-07-13T16:31:57.054858358Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Hermes Agent contains a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation
- Details
-
Hermes Agent before 0.16.0 contains a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation. FastAPI HTTP middleware does not execute for WebSocket upgrade requests on /api/pty, /api/ws, /api/pub, and /api/events endpoints, enabling attackers to exploit DNS rebinding and inject malicious commands or read terminal output.
- References
-
- https://nvd.nist.gov/vuln/detail/CVE-2026-53869
- https://github.com/NousResearch/hermes-agent/pull/30221
- https://github.com/NousResearch/hermes-agent/pull/31685
- https://github.com/NousResearch/hermes-agent/commit/d9ec90585cf7616b5972e44cf8d92bb569fc3feb
- https://github.com/NousResearch/hermes-agent
- https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.5
- https://www.vulncheck.com/advisories/hermes-agent-dns-rebinding-bypass-via-websocket-endpoints
- https://pypi.org/project/hermes-agent
- https://github.com/advisories/GHSA-4pqm-j46f-795x
Affected packages
PyPI / hermes-agent
Package
- Name
- hermes-agent
- View open source insights on deps.dev
- Purl
- pkg:pypi/hermes-agent