CVE Explorer

CVE-2026-39977

flatpak-builder is a tool to build flatpaks from source. From 1.4.5 to before 1.4.8, the license-files manifest key takes an array of paths to user defined licence files relative to the source directory of the module. The paths from that array are resolved using g_file_resolve_relative_path() and validated to stay inside the source directory using two checks - g_file_get_relative_path() which does not resolve symlinks and g_file_query_file_type() with G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS which on

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:745d9750028c4922a1e3bedad16484d53c18ae725b18eb8dd1deaf6c67cb17dd

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"flatpak-builder","vendor":"flatpak","versions":[{"status":"affected","version":">= 1.4.5, < 1.4.8"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:649ad66b1bdf4b37bd90436dfa508bd95fd0ca52cf346d4b7edeb826418a166a · sha256:60645829229023a1… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.1,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:649ad66b1bdf4b37bd90436dfa508bd95fd0ca52cf346d4b7edeb826418a166a · sha256:60645829229023a1… · /containers/cna/metrics/0/cvssV4_0

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:v2:649ad66b1bdf4b37bd90436dfa508bd95fd0ca52cf346d4b7edeb826418a166a · sha256:60645829229023a1… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/flatpak/flatpak-builder/security/advisories/GHSA-6gm9-3g7m-3965","tags":["x_refsource_CONFIRM"],"url":"https://github.com/flatpak/flatpak-builder/security/advisories/GHSA-6gm9-3g7m-3965"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:649ad66b1bdf4b37bd90436dfa508bd95fd0ca52cf346d4b7edeb826418a166a · sha256:60645829229023a1… · /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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