CVE-2026-10221 | THREATINT

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Description

A vulnerability was identified in NousResearch hermes-agent up to 0.12.0. Affected by this vulnerability is the function _compress_context of the file run_agent.py. The manipulation leads to injection. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

PUBLISHED Reserved 2026-05-31 | Published 2026-06-01 | Updated 2026-06-01 | Assigner VulDB

MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

HIGH: 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

HIGH: 7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

7.5AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Injection

Improper Neutralization

Product status

0.1
affected

0.2
affected

0.3
affected

0.4
affected

0.5
affected

0.6
affected

0.7
affected

0.8
affected

0.9
affected

0.10
affected

0.11
affected

0.12.0
affected

Timeline

2026-05-31:	Advisory disclosed
2026-05-31:	VulDB entry created
2026-05-31:	VulDB entry last update

Credits

Eric-j (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/367500 (VDB-367500 | NousResearch hermes-agent run_agent.py _compress_context injection) vdb-entry technical-description

vuldb.com/vuln/367500/cti (VDB-367500 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-10221 (CVE-2026-10221 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/822019 (Submit #822019 | NousResearch hermes-agent <= 0.12.0 Injection (CWE-74)) third-party-advisory

gist.github.com/YLChen-007/d343fcfe2c009cd45f56dc475fd5ac03 exploit

cve.org (CVE-2026-10221)

nvd.nist.gov (CVE-2026-10221)

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