8.8

CVE-2026-24844: chainguard-dev melange OS Command Injection

CVSS: 8.8v3.1HighAnalyzed
AliasesCGA-6x86-rpfc-8fjrCGA-wvv2-8qj6-2v6wGHSA-vqqr-rmpc-hhg2
Published 04-02-2026Last modified 05-02-2026
Open JSON

Vulnerability summary

CVE-2026-24844 is a high (CVSS 8.8) OS Command Injection vulnerability in chainguard-dev melange. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.3% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
0.20%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 3
OPENSUSE-SU-2026:21483-1SUSE-SU-2026:0403-1CGA-VXRG-4FV3-HFPF

Timeline

  1. 04-02-2026
    PublishedVulnerability first disclosed.
  2. 05-02-2026
    Last modifiedVulnerability information updated.

Description

melange allows users to build apk packages using declarative pipelines. From version 0.3.0 to before 0.40.3, an attacker who can provide build input values, but not modify pipeline definitions, could execute arbitrary shell commands if the pipeline uses ${{vars.*}} or ${{inputs.*}} substitutions in working-directory. The field is embedded into shell scripts without proper quote escaping. This issue has been patched in version 0.40.3.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

+0.02 pp

From 0.18% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.20%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard3 products
  • cg< 0.2.201-r0
  • wolfictl< 0.39.0-r1
  • melange≥ 0.3.0, ≤ 0.40.5
Chainguard-dev1 product
Chainguard.dev1 product
  • melange≥ 0.3.0, < 0.40.3
Wolfi1 product
  • wolfictl< 0.39.0-r1

4 vendors · 6 products

References

5 links