CVE-2026-29049CWE-400CWE-918

melange: unbounded HTTP download in `melange update-cache` can exhaust disk in CI

Medium · published March 6, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
33.9
In the wild
Unconfirmed
What it is

melange allows users to build apk packages using declarative pipelines. In version 0.40.5 and prior, melange update-cache downloads URIs from build configs via io.Copy without any size limit or HTTP client timeout (pkg/renovate/cache/cache.go). An attacker-controlled URI in a melange config can cause unbounded disk writes, exhausting disk on the build runne. Version 0.43.4 contains a patch.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00407 · 33.9th percentile
Weaknesses
CWE-400 · Uncontrolled Resource Consumption; CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-03-06T07:03Z
EPSS history
Timeline
  • 06 MAR 07:03Z
    melange: unbounded HTTP download in `melange update-cache` can exhaust disk in CI
    cvelistv5