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CVE-2026-76243— stigmem before 0.9.0a2 Authentication Bypass via Disabled Auth

Quick assessment

Affected
eidetic-labs stigmem
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

eidetic-labs stigmem是eidetic-labs组织的一款威胁情报网络产品。 eidetic-labs stigmem 0.9.0a2之前版本存在授权问题漏洞，该漏洞源于非回环部署中禁用身份验证，可能导致未经身份验证的攻击者以匿名身份执行读取、写入和联合操作。

CVSS 9.2 · Critical EPSS 0.40% · P33

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
eidetic-labs stigmem < 0.9.0a2 affected
0.9.0a2 unaffected
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I. Basic Information for CVE-2026-76243

Vulnerability Information
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Vulnerability Title
stigmem before 0.9.0a2 Authentication Bypass via Disabled Auth
Source: CVE Program / CVE List V5
Vulnerability Description
stigmem versions before 0.9.0a2 allow unauthenticated access when authentication is disabled on non-loopback deployments. Attackers can perform read, write, and federation operations with anonymous identity when nodes are exposed outside local development environments.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
eidetic-labs stigmem 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
eidetic-labs stigmem是eidetic-labs组织的一款威胁情报网络产品。 eidetic-labs stigmem 0.9.0a2之前版本存在授权问题漏洞，该漏洞源于非回环部署中禁用身份验证，可能导致未经身份验证的攻击者以匿名身份执行读取、写入和联合操作。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
eidetic-labs stigmem 0 ~ 0.9.0a2 -

II. Public POCs for CVE-2026-76243

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6366 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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POC zip download
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III. Intelligence Information for CVE-2026-76243

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Vendor Advisories for CVE-2026-76243 (2)

Same Patch Batch · eidetic-labs · 2026-08-19 · 10 CVEs total

CVE-2026-76242 9.1 CRITICAL stigmem Federation Peer Registration Authentication Bypass
CVE-2026-76244 9.1 CRITICAL stigmem-node Insecure Federation Transport Configuration
CVE-2026-76237 8.6 HIGH stigmem before 0.9.0a12 Cross-Tenant BOLA via quarantine
CVE-2026-76240 7.5 HIGH stigmem Postgres SQL Injection via Schema Identifier
CVE-2026-76241 7.3 HIGH stigmem Plugin Signature Enforcement Bypass via Configuration
CVE-2026-76238 7.2 HIGH stigmem before 0.9.0a12 Cross-Tenant BOLA via decay sweep
CVE-2026-76236 7.2 HIGH stigmem before 0.9.0a12 Cross-Tenant BOLA via Tombstones
CVE-2026-76245 7.1 HIGH stigmem Federation Peer Token Timestamp Validation Bypass
CVE-2026-76239 6.3 MEDIUM Stigmem before 0.9.0a11 SSRF via unvalidated webhook delivery_address

IV. Related Vulnerabilities

Same product: stigmem
Same vendor: eidetic-labs
Same weakness: CWE-285

V. Comments for CVE-2026-76243

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