PT-2026-43298 · Xyproto · Algernon

Katrielmoses · Publicado 2026-05-26 · Atualizado 2026-05-26 · CVE-2026-43982

NVD

CVSS v4.0

8.7

Alta

Vetor base

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Correção

Path traversal

Enumeração de Fraquezas

CWE-22

Identificadores relacionados

CVE-2026-43982

Produtos afetados

Algernon

Referências · 3

• https://github.com/xyproto/algernon/security/advisories/GHSA-2j2c-pv62-mmcp · Nota
• https://github.com/xyproto/algernon/issues/172 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-43982 · Nota de Segurança