CVE-2026-105636

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Source
https://cve.org/CVERecord?id=CVE-2026-105636
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105636.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-105636
Aliases
  • GHSA-mq87-52pf-hm3h
Published
2026-10-05T18:02:53Z
Modified
2026-10-06T02:47:23Z
Severity
  • 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
Plane: SSRF via HTTP redirect in webhook delivery (allow_redirects not set)
Details

Plane is an open-source project management tool. Prior to 1.4.0, the webhook delivery task in apps/api/plane/bgtasks/webhook_task.py calls requests.post() without allow_redirects=False and does not validate redirect targets. validate_url() blocks private, loopback, link-local, and reserved addresses in the original webhook URL, but the final URL reached after one or more redirects is not checked. A user who can create a workspace can register a webhook pointing to an attacker-controlled public endpoint that returns a 302 redirect to an internal address. The Plane worker then fetches internal resources, including cloud metadata, and stores the response body in webhook_logs, where the attacker can retrieve it through the workspace webhook-logs API. This issue is fixed in 1.4.0.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-918"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105636.json"
}
References

Affected packages

Git / github.com/makeplane/plane

Affected ranges

Type
GIT
Repo
https://github.com/makeplane/plane
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
917b23a6c16d93fc00cef67900eff2755e8b13f7
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.4.0"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

v0.*
v0.1-dev
v0.10-dev
v0.11-dev
v0.12-dev
v0.12.1-dev
v0.12.2-dev
v0.13-dev
v0.13.1-dev
v0.13.2-dev
v0.14-dev
v0.14.1-dev
v0.14.2-dev
v0.15-dev
v0.15.1-dev
v0.15.2-dev
v0.15.3-hotfix
v0.15.4-dev
v0.16-dev
v0.17-dev
v0.18-dev
v0.19-dev
v0.20-dev
v0.21-dev
v0.22-dev
v0.23.0
v0.23.1
v0.24.0
v0.3.1-dev
v0.4-dev
v0.5-dev
v0.6-dev
v0.7-dev
v0.7.1-dev
v0.8-dev
v0.9-dev
v1.*
v1.3.0
v1.3.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105636.json"