Stigmem before 0.9.0a11 SSRF via unvalidated webhook delivery_address
Priority MEDIUM 57CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Stigmem before 0.9.0a11 fails to validate the delivery_address parameter when creating webhook subscriptions, allowing authenticated users to specify internal loopback and private network destinations. Attackers can trigger matching fact-change events to cause the Stigmem server to issue server-side HTTP POST requests to internal services, enabling blind SSRF attacks against localhost and private network endpoints.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00324 25th percentileScored 2026-11-07
Fix Fixed stigmem-node (eidetic-labs): 0.9.0a11
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| eidetic-labs | stigmem-node | before 0.9.0a11 | 0.9.0a11 | Patch available | CNA |
- stigmem-node Vendoreidetic-labs Affected before 0.9.0a11 Fixed in 0.9.0a11 Patch available CNA
Remediation
- Fix · CNA stigmem-node (eidetic-labs) Fixed in 0.9.0a11
Timeline
- 2026-10-02 Threatist record created from CVE-2026-76239
- 2026-10-03 Alias added: GHSA-xq22-gq5h-mvx5
References
More eidetic-labs vulnerabilities
- TI-2026-53348 stigmem before 0.9.0a2 Authentication Bypass via Disabled Auth CVSS 4.0CRITICAL 9.2
- TI-2026-53349 stigmem-node Insecure Federation Transport Configuration CVSS 4.0CRITICAL 9.1
- TI-2026-53347 stigmem Federation Peer Registration Authentication Bypass CVSS 4.0CRITICAL 9.1
- TI-2026-53342 stigmem before 0.9.0a12 Cross-Tenant BOLA via quarantine CVSS 4.0HIGH 8.6
- TI-2026-53345 stigmem Postgres SQL Injection via Schema Identifier CVSS 4.0HIGH 7.5
- TI-2026-53343 stigmem before 0.9.0a12 Cross-Tenant BOLA via decay sweep CVSS 4.0HIGH 7.2
Sources
- CVE-2026-76239 · CVE Program
- CVE-2026-76239 · NVD
- FIRST EPSS
- GHSA-xq22-gq5h-mvx5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences