CVE WatchOct 28, 2026

CVE-2026-118485

Axel Download Accelerator 2.17.14 and earlier performs URL percent-decoding (http_decode()) on the output filename after the URL has been pa

CVSS

8.1

High

EPSS

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KEV

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Exploit Today

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0-100

Published: Oct 28, 2026 · Last modified: Oct 28, 2026 · CWE-24

EPSS · 30d

Not enough EPSS history yet.

Technical description

Axel Download Accelerator 2.17.14 and earlier performs URL percent-decoding (http_decode()) on the output filename after the URL has been parsed and the filename component extracted. This allows an attacker to embed %2e%2e%2f (URL-encoded ../) sequences in the URL path. These sequences survive the URL parser intact (they contain no literal / characters) but are decoded into directory traversal sequences before the output file is opened for writing. As a result, a crafted URL can cause axel to write downloaded content to arbitrary filesystem paths relative to the current working directory.

Official references

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