CVE-2026-49248

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Source
https://cve.org/CVERecord?id=CVE-2026-49248
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49248.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-49248
Aliases
  • GHSA-55g8-94r5-cj37
Published
2026-06-18T19:54:01Z
Modified
2026-10-28T02:30:29Z
Severity
  • 8.3 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N CVSS Calculator
Summary
OneDev: RCE through absolute-path symlink following allows low-privileged users to overwrite arbitrary server via TarUtils.untar
Details

OneDev is a Git server with CI/CD, kanban, and packages. In versions 15.0.6 and below, TarUtils.untar() creates symbolic links verbatim from TAR entry getLinkName() without validating whether the target is an absolute path. A subsequent file entry in the same archive traverses the symlink, writing to arbitrary server-side locations. This is exploitable by any authenticated user with CI Job write access — no admin interaction required. This is an incomplete fix bypass of CVE-2021-21251 (GHSA-2w6j-wc8c-9mq2): that patch blocked .. path segments but did not address absolute symlink targets. This issue has been fixed in version 15.0.7.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-61"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49248.json"
}
References

Affected packages

Git / github.com/theonedev/onedev

Affected ranges

Type
GIT
Repo
https://github.com/theonedev/onedev
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5305a2a5b11f968b13738b54cb78c9065be5ef34
Fixed
4f8684acebc4bfeefd3c7e23a34a4fd591cb27ad
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "15.0.7"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "4f8684acebc4bfeefd3c7e23a34a4fd591cb27ad"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

2.*
2.0-beta-build119
2.0-beta-build120
2.0.0
2.0.4
2.0.5
v10.*
v10.0.0
v10.1.0
v10.1.1
v10.1.2
v10.1.3
v10.1.4
v10.1.5
v10.2.0
v10.2.1
v10.3.0
v10.3.1
v10.3.2
v10.3.3
v10.4.0
v10.5.1
v10.5.2
v10.6.0
v10.7.0
v10.7.1
v10.7.2
v10.7.3
v10.7.5
v10.7.6
v10.7.7
v10.8.0
v10.9.0
v10.9.1
v10.9.2
v10.9.3
v10.9.4
v10.9.5
v10.9.6
v11.*
v11.0.0
v11.0.1
v11.0.2
v11.0.6
v11.0.7
v11.0.8
v11.0.9
v11.1.0
v11.1.1
v11.1.2
v11.1.3
v11.1.6
v11.10.0
v11.10.1
v11.10.2
v11.10.3
v11.10.4
v11.11.0
v11.11.1
v11.2.0
v11.2.1
v11.3.0
v11.3.1
v11.3.2
v11.4.0
v11.4.1
v11.5.0
v11.5.1
v11.6.0
v11.6.1
v11.6.10
v11.6.11
v11.6.12
v11.6.13
v11.6.14
v11.6.15
v11.6.16
v11.6.2
v11.6.3
v11.6.4
v11.6.5
v11.6.6
v11.6.7
v11.6.8
v11.6.9
v11.7.0
v11.7.1
v11.7.2
v11.7.3
v11.7.4
v11.7.6
v11.8.0
v11.8.1
v11.8.2
v11.8.3
v11.8.4
v11.8.5
v11.8.6
v11.8.7
v11.9.1
v11.9.2
v11.9.3
v11.9.4
v11.9.5
v11.9.6
v11.9.7
v11.9.8
v11.9.9
v12.*
v12.0.0
v12.0.1
v12.0.10
v12.0.2
v12.0.3
v12.0.4
v12.0.5
v12.0.6
v12.0.7
v12.0.8
v12.0.9
v13.*
v13.0.0
v13.0.1
v13.0.10
v13.0.2
v13.0.3
v13.0.4
v13.0.5
v13.0.6
v13.0.7
v13.0.8
v13.0.9
v13.1.0
v13.1.3
v13.1.4
v13.1.6
v13.1.7
v14.*
v14.0.0
v14.0.1
v14.0.2
v14.0.3
v14.0.4
v14.0.5
v14.0.6
v14.0.7
v14.0.8
v14.1.0
v14.1.1
v14.1.2
v14.1.3
v14.1.4
v14.1.5
v14.1.6
v14.1.7
v15.*
v15.0.0
v15.0.1
v15.0.2
v15.0.3
v15.0.4
v15.0.5
v15.0.6
v3.*
v3.0.10
v3.0.4
v3.0.5
v3.0.6
v3.0.7
v3.0.8
v3.0.9
v3.1.0
v3.1.1
v3.1.2
v3.2.0
v3.2.1
v3.2.2
v3.2.3
v3.2.4
v4.*
v4.0.0
v4.0.1
v4.0.2
v4.0.3
v4.0.4
v4.0.5
v4.0.6
v4.0.7
v4.0.8
v4.0.9
v4.1.0
v4.1.2
v4.1.3
v4.1.4
v4.1.5
v4.1.6
v4.10.3
v4.11.0
v4.2.0
v4.2.1
v4.2.2
v4.2.3
v4.2.4
v4.2.5
v4.3.0
v4.3.2
v4.4.0
v4.4.1
v4.4.2
v4.4.3
v4.6.0
v4.6.1
v4.7.0
v4.8.0
v4.8.1
v4.9.0
v4.9.1
v4.9.2
v5.*
v5.0.0
v5.0.1
v5.1.0
v5.2.0
v5.2.1
v5.2.2
v5.3.0
v5.3.1
v5.3.3
v5.4.0
v6.*
v6.0.0
v6.1.0
v6.1.1
v6.1.2
v6.1.3
v6.1.4
v6.2.0
v6.2.1
v6.2.2
v6.2.3
v6.2.4
v6.3.0
v6.3.1
v6.3.10
v6.3.11
v6.3.12
v6.3.13
v6.3.2
v6.3.3
v6.3.4
v6.3.5
v6.3.6
v6.3.7
v6.3.8
v6.3.9
v7.*
v7.0.0
v7.0.1
v7.0.2
v7.0.3
v7.1.0
v7.1.1
v7.1.2
v7.1.3
v7.1.6
v7.1.7
v7.1.8
v7.2.0
v7.2.1
v7.2.2
v7.2.3
v7.2.4
v7.2.5
v7.2.7
v7.2.8
v7.2.9
v7.3.0
v7.3.10
v7.3.11
v7.3.12
v7.3.13
v7.3.14
v7.3.15
v7.3.2
v7.3.3
v7.3.4
v7.3.5
v7.3.6
v7.3.7
v7.3.8
v7.3.9
v7.4.0
v7.4.1
v7.4.10
v7.4.11
v7.4.12
v7.4.13
v7.4.14
v7.4.15
v7.4.16
v7.4.17
v7.4.18
v7.4.19
v7.4.2
v7.4.20
v7.4.21
v7.4.22
v7.4.23
v7.4.24
v7.4.25
v7.4.26
v7.4.27
v7.4.28
v7.4.29
v7.4.3
v7.4.7
v7.4.8
v7.4.9
v7.5.0
v7.5.1
v7.5.2
v7.5.3
v7.6.0
v7.6.1
v7.6.2
v7.7.1
v7.7.12
v7.7.13
v7.7.14
v7.7.2
v7.7.5
v7.8.0
v7.8.1
v7.8.10
v7.8.11
v7.8.12
v7.8.13
v7.8.14
v7.8.15
v7.8.2
v7.8.3
v7.8.4
v7.8.5
v7.8.6
v7.8.7
v7.8.8
v7.8.9
v7.9.0
v7.9.1
v7.9.2
v7.9.3
v7.9.4
v7.9.5
v7.9.6
v7.9.7
v8.*
v8.0.0
v8.0.1
v8.0.10
v8.0.11
v8.0.12
v8.0.13
v8.0.14
v8.0.15
v8.0.2
v8.0.3
v8.0.4
v8.0.5
v8.0.6
v8.0.7
v8.0.8
v8.0.9
v8.1.0
v8.1.1
v8.1.2
v8.1.3
v8.1.4
v8.1.5
v8.1.6
v8.2.0
v8.2.1
v8.2.2
v8.2.3
v8.2.4
v8.2.5
v8.2.7
v8.2.8
v8.3.0
v8.3.1
v8.3.2
v8.3.3
v8.3.4
v8.3.5
v8.3.6
v8.3.7
v8.3.8
v8.4.0
v8.4.1
v8.4.2
v8.5.0
v8.5.1
v8.5.2
v8.5.3
v8.5.4
v8.5.5
v8.5.6
v8.5.7
v8.5.8
v8.5.9
v8.6.0
v8.6.1
v8.6.10
v8.6.11
v8.6.12
v8.6.2
v8.6.4
v8.6.5
v8.6.6
v8.6.7
v8.6.8
v8.6.9
vv11.*
vv11.7.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49248.json"