CVE-2026-108752

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Source
https://cve.org/CVERecord?id=CVE-2026-108752
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108752.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-108752
Aliases
Downstream
Published
2026-10-11T12:19:51Z
Modified
2026-10-28T02:30:41Z
Severity
  • 2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
JupyterHub through 6.0.1 OAuth Client ID Collision via Unescaped Hyphen
Details

JupyterHub through 6.0.1 contains an identifier collision vulnerability that allows authenticated users to overwrite another user's named-server OAuth client by registering a hyphenated username. Attackers holding a name like alice-prod can overwrite the client for alice's server prod, breaking OAuth login and revoking tokens by stopping their own server.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-694"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108752.json"
}
References

Affected packages

Git / github.com/jupyterhub/jupyterhub

Affected ranges

Type
GIT
Repo
https://github.com/jupyterhub/jupyterhub
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
3e516c6f382b481e815ec455befb2f14d80d337b
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "6.0.1"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "6.0.1"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Affected versions

0.*
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.5.0
0.6.0
0.6.1
0.7.0
0.7.1
0.7.2
0.8.0
0.8.0b1
0.8.0b2
0.8.0b3
0.8.0b4
0.8.0b5
0.8.0rc1
0.8.0rc2
0.8.1
0.9.0
0.9.0b1
0.9.0b2
0.9.0b3
0.9.0rc1
0.9.1
0.9.2
1.*
1.0.0
1.0.0b1
1.0.0b2
1.1.0
1.1.0b1
1.2.0
1.2.0b1
1.2.1
1.3.0
1.4.0
2.*
2.0.0
2.0.0b1
2.0.0b2
2.0.0b3
2.0.0rc1
2.0.0rc2
2.0.0rc3
2.0.0rc4
2.0.0rc5
2.0.1
2.0.2
2.1.0
2.1.1
2.2.0
2.2.1
2.2.2
3.*
3.0.0
3.0.0b1
3.1.0
4.*
4.0.0
4.0.0b1
4.0.0b2
4.0.1
5.*
5.0.0
5.0.0b1
5.0.0b2
5.1.0
5.2.0
5.2.1
5.3.0
5.3.0rc0
5.4.0
5.4.1
5.4.2
6.*
6.0.0
6.0.0b1
6.0.0b2
6.0.0b3
6.0.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108752.json"