CVE-2026-76239Stigmem before 0.9.0a11 SSRF via unvalidated webhook delivery_address
Updated under an hour ago ()
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It affects eidetic-labs stigmem-node. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- Weakness (CWE)
- CWE-918
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Aug 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
eidetic-labs stigmem-node eidetic_labs:stigmem_node (from the name) | before 0.9.0a11; 0.9.0a11 not affected | CNA record |
References
- https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-5p3m-vhh6-9236vendor-advisory
- https://www.vulncheck.com/advisories/stigmem-before-0a11-ssrf-via-unvalidated-webhook-delivery-addressthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.