🛡️ CVE-2026-43982

⚪ Unknown ✅ No Known Exploit CWE-22 NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Algernon is a small self-contained pure-Go web server. Prior to 1.17.6, uploadedFileSaveIn() in lua/upload/upload.go uses filepath.Join() with the caller-supplied directory but performs no boundary check after joining. A directory of ../../../tmp resolves cleanly to /tmp, outside the web root. This vulnerability is fixed in 1.17.6.

Weakness class

CVE-2026-43982 is classified as CWE-22: Path Traversal. A file path built from user input is not confined to the intended directory, letting an attacker reach files elsewhere on the filesystem.

Affected software

CVE-2026-43982 is recorded against 1 package.

  • unknown

Timeline and source

Published on 26 May 2026 and last revised on 24 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com
github.com

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE CWE-22
Public Exploit ✅ No
Source NVD
Published 2026-05-26
Updated 2026-08-11
Modified 2026-07-24
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

Similar Threats

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