CVE-2026-62843

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Source
https://cve.org/CVERecord?id=CVE-2026-62843
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-62843.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-62843
Aliases
Downstream
Related
Published
2026-07-15T15:42:19Z
Modified
2026-10-16T03:00:10Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N CVSS Calculator
Summary
File Browser: Archive builder turns backslash filenames into path traversal (zip-slip)
Details

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. From 2.63.6 to 2.63.16, File Browser's archive builder uses strings.ReplaceAll(nameInArchive, "", "/"), which turns a POSIX filename such as ....\evil.sh into the archive entry ../../evil.sh, allowing a user with upload permission to plant a backslash-named file that escapes the extraction directory when another user downloads and extracts the generated zip or tar archive. This issue is fixed in version 2.63.17.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-22",
        "CWE-23"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62843.json"
}
References

Affected packages

Git / github.com/filebrowser/filebrowser

Affected ranges

Type
GIT
Repo
https://github.com/filebrowser/filebrowser
Events
Introduced
85b7d2762dda67b6158220991654c65b43739005
Fixed
d76b7d161099853f17e71b1327ce4545a30c27a2
Fixed
8503ba61ff51d48a7313896483d130eb6a5abfe0
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "2.63.6"
                },
                {
                    "fixed":  "2.63.17"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "8503ba61ff51d48a7313896483d130eb6a5abfe0"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v2.63.17",
            "range":  [
                {
                    "fixed":  "d76b7d161099853f17e71b1327ce4545a30c27a2"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

v2.*
v2.63.10
v2.63.11
v2.63.12
v2.63.13
v2.63.14
v2.63.15
v2.63.16
v2.63.6
v2.63.7
v2.63.8
v2.63.9

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-62843.json"