CVE-2026-30942

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Source
https://cve.org/CVERecord?id=CVE-2026-30942
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-30942.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-30942
Aliases
  • GHSA-h639-p7m9-mpgp
Published
2026-03-10T16:44:10Z
Modified
2026-10-21T02:30:48Z
Severity
  • 8.3 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N CVSS Calculator
Summary
Flare has a Path Traversal in /api/avatars/[filename]
Details

Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools. Prior to 1.7.3, an authenticated path traversal vulnerability in /api/avatars/[filename] allows any logged-in user to read arbitrary files from within the application container. The filename URL parameter is passed to path.join() without sanitization, and getFileStream() performs no path validation, enabling %2F-encoded ../ sequences to escape the uploads/avatars/ directory and read any file accessible to the nextjs process under /app/. Authentication is enforced by Next.js middleware. However, on instances with open registration enabled (the default), any attacker can self-register and immediately exploit this. This vulnerability is fixed in 1.7.3.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-22"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30942.json"
}
References

Affected packages

Git / github.com/flintsh/flare

Affected ranges

Type
GIT
Repo
https://github.com/flintsh/flare
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
2943ae9650e3ad57afae516aa3dcfc0cc22c0fba
Fixed
cd894cc480619aef958be5de72b1445222fd8d36
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:flintsh:flare:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "1.7.3"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "range":  [
                {
                    "fixed":  "cd894cc480619aef958be5de72b1445222fd8d36"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v1.7.3",
            "range":  [
                {
                    "fixed":  "2943ae9650e3ad57afae516aa3dcfc0cc22c0fba"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

Other
rolling
v1.*
v1.0.0
v1.1.0
v1.1.1
v1.2.0
v1.2.1
v1.3.0
v1.3.1
v1.4.0
v1.4.1
v1.4.2
v1.5.0
v1.5.1
v1.5.2
v1.6.0
v1.6.1
v1.6.2
v1.7.0
v1.7.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-30942.json"