CVE Explorer

CVE-2026-24843

melange allows users to build apk packages using declarative pipelines. In version 0.11.3 to before 0.40.3, an attacker who can influence the tar stream from a QEMU guest VM could write files outside the intended workspace directory on the host. The retrieveWorkspace function extracts tar entries without validating that paths stay within the workspace, allowing path traversal via ../ sequences. This issue has been patched in version 0.40.3.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3c237ad1d668884d12e7d049de4af69937981a72eb2ad4815b0728d0bfcf54d1

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"melange","vendor":"chainguard-dev","versions":[{"status":"affected","version":">= 0.11.3, < 0.40.3"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:e4532e86aaa0359fde31be0c1b06d88f47f85a3e8d5c0c203f145365d5663e20 · sha256:3b65550a1e7e032b… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:e4532e86aaa0359fde31be0c1b06d88f47f85a3e8d5c0c203f145365d5663e20 · sha256:3b65550a1e7e032b… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:e4532e86aaa0359fde31be0c1b06d88f47f85a3e8d5c0c203f145365d5663e20 · sha256:3b65550a1e7e032b… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/chainguard-dev/melange/commit/6e243d0d46699f837d7c392397a694d2bcc7612b","tags":["x_refsource_MISC"],"url":"https://github.com/chainguard-dev/melange/commit/6e243d0d46699f837d7c392397a694d2bcc7612b"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:e4532e86aaa0359fde31be0c1b06d88f47f85a3e8d5c0c203f145365d5663e20 · sha256:3b65550a1e7e032b… · /containers/cna/references/1

{"name":"https://github.com/chainguard-dev/melange/security/advisories/GHSA-qxx2-7h4c-83f4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/chainguard-dev/melange/security/advisories/GHSA-qxx2-7h4c-83f4"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:e4532e86aaa0359fde31be0c1b06d88f47f85a3e8d5c0c203f145365d5663e20 · sha256:3b65550a1e7e032b… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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