CVE-2026-103059

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Source
https://cve.org/CVERecord?id=CVE-2026-103059
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103059.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-103059
Aliases
  • GHSA-8pwg-hcgm-54cp
Published
2026-10-06T19:22:57Z
Modified
2026-10-08T02:50:27Z
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 built-in SSH server authentication bypass through key case folding
Details

When Gitea's built-in SSH server is enabled (START_SSH_SERVER = true), the presented public key was looked up with an SQL LIKE comparison of its encoded content, which is case-insensitive on some databases, including the default SQLite. An attacker who can construct a case variant of another user's registered RSA public key for which they can derive the private key could have that key matched to the victim's account and authenticate over SSH as that user. Keys are now looked up by fingerprint.

Database specific 
{
    "cna_assigner": "Gitea",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103059.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
15b8a5805adf57c5189602008d38cccfd3c795e0
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.27.3"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

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-dev
v1.26.0-dev
v1.27.0-dev
v1.28.0-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
v29.*
v29.0.0-dev

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103059.json"