CVE-2026-104976

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Source
https://cve.org/CVERecord?id=CVE-2026-104976
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104976.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-104976
Aliases
  • GHSA-hx79-5pj5-qh42
Published
2026-10-05T17:45:43Z
Modified
2026-10-08T02:30:50Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Plane: SSRF in Gitea OAuth
Details

Plane is an open-source project management tool. Prior to 1.4.0, Plane validates GITEA_HOST only for its URL scheme and does not reject hosts that resolve to private or internal IP addresses. The four outbound requests in the Gitea OAuth flow are derived from this unvalidated host and do not call validate_url(). In addition, avatar_url is taken from the Gitea user's profile, where users can configure external avatar URLs. After an administrator enables Gitea OAuth for a legitimate instance, a Gitea user can set an internal URL as the profile avatar and log in through Gitea, causing Plane to fetch the internal target without validation. 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/2026/104xxx/CVE-2026-104976.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
04622ce1188c4680951f0001e35efb342fe51615
Fixed
917b23a6c16d93fc00cef67900eff2755e8b13f7
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.4.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

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
v0.25.0
v0.25.1
v0.25.2
v0.25.3
v0.26.0
v0.26.1
v0.27.0
v0.27.1
v0.28.0
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.*
v1.0.0
v1.1.0
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.3.0
v1.3.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104976.json"