CVE-2026-76239

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-76239
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-76239.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-76239
Aliases
Published
2026-08-19T14:02:17Z
Modified
2026-08-23T03:42:34Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Stigmem before 0.9.0a11 SSRF via unvalidated webhook delivery_address
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76239.json"
}
References

Affected packages

Git / github.com/eidetic-labs/stigmem

Affected ranges

Type
GIT
Repo
https://github.com/eidetic-labs/stigmem
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
11637401d50629fef040382aee5af4571842c152
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.9.0a11"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

v0.*
v0.9.0a10
v0.9.0a2
v0.9.0a3
v0.9.0a4
v0.9.0a5
v0.9.0a6
v0.9.0a7
v0.9.0a8
v0.9.0a9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-76239.json"