CVE-2026-20897

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Source
https://cve.org/CVERecord?id=CVE-2026-20897
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-20897.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-20897
Aliases
Downstream
Related
Published
2026-01-22T22:01:51Z
Modified
2026-10-20T11:20:22Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
Gitea Git LFS Lock Deletion Broken Access Control (Cross-Repo IDOR)
Details

Gitea does not properly validate repository ownership when deleting Git LFS locks. A user with write access to one repository may be able to delete LFS locks belonging to other repositories.

Database specific 
{
    "cna_assigner":  "Gitea",
    "cwe_ids":  [
        "CWE-284",
        "CWE-639"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/20xxx/CVE-2026-20897.json"
}
References

Affected packages

Git / github.com/go-gitea/gitea

Affected ranges

Type
GIT
Repo
https://github.com/go-gitea/gitea
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
369830bada2fd8826a5135cb2fc66660a9bef708
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "1.25.3"
        },
        {
            "cpe":  "cpe:2.3:a:gitea:gitea:*:*:*:*:*:-:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "1.25.4"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "original_tag":  "v1.25.4",
            "range":  [
                {
                    "fixed":  "369830bada2fd8826a5135cb2fc66660a9bef708"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

v0.*
v0.9.99
v1.*
v1.0.0
v1.1.0
v1.10.0-dev
v1.10.0-rc1
v1.10.5
v1.11.0-dev
v1.11.0-rc1
v1.12.0-dev
v1.13.0-dev
v1.14.0-dev
v1.15.0-dev
v1.15.0-rc1
v1.16.0-dev
v1.16.0-rc1
v1.17.0-dev
v1.18.0-dev
v1.18.0-rc0
v1.19.0-dev
v1.19.0-rc0
v1.20.0-dev
v1.20.0-rc0
v1.21.0-dev
v1.21.0-rc0
v1.22.0-dev
v1.22.0-rc0
v1.22.0-rc1
v1.23.0-dev
v1.24.0-dev
v1.25.0
v1.25.0-dev
v1.25.0-rc0
v1.25.1
v1.25.2
v1.25.3
v1.26.0-dev
v1.5.0-dev
v1.5.0-rc1
v1.6.0-dev
v1.6.0-rc1
v1.7.0-dev
v1.9.0-dev
v1.9.0-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-20897.json"