CVE-2026-76241

Code execution via disabled plugin signing

Published Aug 19, 2026 · Updated Aug 19, 2026

Improper signature verification in the stigmem-node package in Eidetic Labs Stigmem before 0.9.0a2 allows attackers to execute unsigned plugin code. A single configuration flag disables plugin signature enforcement, so the loader accepts untrusted plugins without the second explicit acknowledgment added in 0.9.0a2. Exposure depends on that override being enabled and plugin directories being writable by less-trusted users; under those conditions, loaded plugin code runs in the service context.

CVSS severity7.3
High
EPSS probability0.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper signature verification in the stigmem-node package in Eidetic Labs Stigmem before 0.9.0a2 allows attackers to execute unsigned plugin code. A single configuration flag disables plugin signature enforcement, so the loader accepts untrusted plugins without the second explicit acknowledgment added in 0.9.0a2. Exposure depends on that override being enabled and plugin directories being writable by less-trusted users; under those conditions, loaded plugin code runs in the service context.

The record

CVE
CVE-2026-76241
Published
Aug 19, 2026
Updated
Aug 19, 2026
Vendor
Eidetic Labs
Product
Stigmem
Classifications
CWE-494, T1574
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.9.0a2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Eidetic Labs · Stigmemversion=0 <0.9.0a2

Published CVSS scores

7.3VulnCheckCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-494Download of Code Without Integrity Check
T1574Hijack Execution Flow

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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