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High severityNVD Advisory· Published May 26, 2026· Updated May 26, 2026

CVE-2026-43982

CVE-2026-43982

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.

AI Insight

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Affected products

2
  • Xyproto/Algernonreferences2 versions
    (expand)+ 1 more
    • (no CPE)
    • (no CPE)range: <1.17.6

Patches

Vulnerability mechanics

References

2

News mentions

0

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