NousResearch hermes-agent Discord Platform Integration discord.py DiscordAdapter._is_allowed_user improper authentication

published 2026-07-04 4 mo ago modified 2026-10-25 15 d ago also EUVD-2026-41672

cvss: 5.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits: 0; none known

A security vulnerability has been detected in NousResearch hermes-agent up to 0.15.2. This affects the function DiscordAdapter._is_allowed_user of the file gateway/platforms/discord.py of the component Discord Platform Integration. Such manipulation leads to improper authentication. The attack can be launched remotely. This attack is characterized by high complexity. The exploitability is reported as difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 4 mo ago (2026-07-06)

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

gist.github.com https://gist.github.com/YLChen-007/d030c690b10a97319efb129ca2f5badb referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	6.3	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA	3.1	5.6	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	3.0	5.6	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	2.0	5.1	AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
CNA	4.0	2.9	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/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
CNA	3.1	5.6	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	5.1	AV:N/AC:H/Au:N/C:P/I:P/A:P

Affected products

NousResearch hermes-agent

Classification

Weakness

CWE-287 Improper Authentication

References

gist.github.com /YLChen-007/d030c690b10a97319efb129ca2f5badb
exploit
vuldb.com /vuln/376143
vdb-entry, technical-description
vuldb.com /vuln/376143/cti
signature, permissions-required
vuldb.com /cve/CVE-2026-14627
third-party-advisory
vuldb.com /submit/845598
third-party-advisory

Sources

CVE List CVE-2026-14627
NVD CVE-2026-14627

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary