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CVE-2026-42795

Symlink following vulnerability in Gleam's Hex package export allows files outside the project root to be embedded in the generated package tarball. The file collection helpers (gleam_files, native_files, private_files) in compiler-cli/src/fs.rs use follow_links(true) when walking publishable directories such as src/ and priv/. The collected paths are added to the package archive via add_path_to_tar in compiler-cli/src/publish.rs without verifying that the resolved target remains within the pro
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:215d584cd05ff4a9bd151e2f5592ccef4fb73552bc13ed9de2e5ff1fa701c0ae
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"collectionURL":"https://ghcr.io","cpes":["cpe:2.3:a:gleam-lang:gleam:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["compiler-cli"],"packageName":"gleam-lang/gleam","packageURL":"pkg:oci/gleam?repository_url=ghcr.io/gleam-lang","product":"Gleam","programFiles":["compiler-cli/src/fs.rs","compiler-cli/src/publish.rs"],"programRoutines":[{"name":"compiler_cli::fs::gleam_files"},{"name":"compiler_cli::fs::native_files"},{"name":"compiler_cli::fs::private_files"},{"name":"compiler_cli::publish::project_files"},{"name":"compiler_cli::publish::add_path_to_tar"}],"vendor":"Gleam","version…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:498fcb02891cdbcaf16642ff3cf8a464d3f5efcb76697305c4dd65bdff1390dc · sha256:33f80c46a8a33acc… · /containers/cna/affected/2

{"cpes":["cpe:2.3:a:gleam-lang:gleam:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["compiler-cli"],"packageName":"gleam","packageURL":"pkg:sid/gleam.run/gleam","product":"Gleam","programFiles":["compiler-cli/src/fs.rs","compiler-cli/src/publish.rs"],"programRoutines":[{"name":"compiler_cli::fs::gleam_files"},{"name":"compiler_cli::fs::native_files"},{"name":"compiler_cli::fs::private_files"},{"name":"compiler_cli::publish::project_files"},{"name":"compiler_cli::publish::add_path_to_tar"}],"vendor":"Gleam","versions":[{"lessThan":"1.17.0","status":"affected","version":"0.10.0-rc1","…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:498fcb02891cdbcaf16642ff3cf8a464d3f5efcb76697305c4dd65bdff1390dc · sha256:33f80c46a8a33acc… · /containers/cna/affected/0

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:gleam-lang:gleam:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["compiler-cli"],"packageName":"gleam-lang/gleam","packageURL":"pkg:github/gleam-lang/gleam","product":"Gleam","programFiles":["compiler-cli/src/fs.rs","compiler-cli/src/publish.rs"],"programRoutines":[{"name":"compiler_cli::fs::gleam_files"},{"name":"compiler_cli::fs::native_files"},{"name":"compiler_cli::fs::private_files"},{"name":"compiler_cli::publish::project_files"},{"name":"compiler_cli::publish::add_path_to_tar"}],"repo":"https://github.com/gleam-lang/glea…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:498fcb02891cdbcaf16642ff3cf8a464d3f5efcb76697305c4dd65bdff1390dc · sha256:33f80c46a8a33acc… · /containers/cna/affected/1

Affected products and versions

3 source assertions
{"collectionURL":"https://ghcr.io","cpes":["cpe:2.3:a:gleam-lang:gleam:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["compiler-cli"],"packageName":"gleam-lang/gleam","packageURL":"pkg:oci/gleam?repository_url=ghcr.io/gleam-lang","product":"Gleam","programFiles":["compiler-cli/src/fs.rs","compiler-cli/src/publish.rs"],"programRoutines":[{"name":"compiler_cli::fs::gleam_files"},{"name":"compiler_cli::fs::native_files"},{"name":"compiler_cli::fs::private_files"},{"name":"compiler_cli::publish::project_files"},{"name":"compiler_cli::publish::add_path_to_tar"}],"vendor":"Gleam","version…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:498fcb02891cdbcaf16642ff3cf8a464d3f5efcb76697305c4dd65bdff1390dc · sha256:33f80c46a8a33acc… · /containers/cna/affected/2
{"cpes":["cpe:2.3:a:gleam-lang:gleam:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["compiler-cli"],"packageName":"gleam","packageURL":"pkg:sid/gleam.run/gleam","product":"Gleam","programFiles":["compiler-cli/src/fs.rs","compiler-cli/src/publish.rs"],"programRoutines":[{"name":"compiler_cli::fs::gleam_files"},{"name":"compiler_cli::fs::native_files"},{"name":"compiler_cli::fs::private_files"},{"name":"compiler_cli::publish::project_files"},{"name":"compiler_cli::publish::add_path_to_tar"}],"vendor":"Gleam","versions":[{"lessThan":"1.17.0","status":"affected","version":"0.10.0-rc1","…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:498fcb02891cdbcaf16642ff3cf8a464d3f5efcb76697305c4dd65bdff1390dc · sha256:33f80c46a8a33acc… · /containers/cna/affected/0
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:gleam-lang:gleam:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["compiler-cli"],"packageName":"gleam-lang/gleam","packageURL":"pkg:github/gleam-lang/gleam","product":"Gleam","programFiles":["compiler-cli/src/fs.rs","compiler-cli/src/publish.rs"],"programRoutines":[{"name":"compiler_cli::fs::gleam_files"},{"name":"compiler_cli::fs::native_files"},{"name":"compiler_cli::fs::private_files"},{"name":"compiler_cli::publish::project_files"},{"name":"compiler_cli::publish::add_path_to_tar"}],"repo":"https://github.com/gleam-lang/glea…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:498fcb02891cdbcaf16642ff3cf8a464d3f5efcb76697305c4dd65bdff1390dc · sha256:33f80c46a8a33acc… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/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:v2:498fcb02891cdbcaf16642ff3cf8a464d3f5efcb76697305c4dd65bdff1390dc · sha256:33f80c46a8a33acc… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-59","description":"CWE-59 Improper Link Resolution Before File Access ('Link Following')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:498fcb02891cdbcaf16642ff3cf8a464d3f5efcb76697305c4dd65bdff1390dc · sha256:33f80c46a8a33acc… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-42795.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:498fcb02891cdbcaf16642ff3cf8a464d3f5efcb76697305c4dd65bdff1390dc · sha256:33f80c46a8a33acc… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/gleam-lang/gleam/commit/6435a5528b9ae0449e2f32be579641ec485f6866"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:498fcb02891cdbcaf16642ff3cf8a464d3f5efcb76697305c4dd65bdff1390dc · sha256:33f80c46a8a33acc… · /containers/cna/references/3
{"tags":["vendor-advisory","related"],"url":"https://github.com/gleam-lang/gleam/security/advisories/GHSA-qhh5-fg4c-8gqc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:498fcb02891cdbcaf16642ff3cf8a464d3f5efcb76697305c4dd65bdff1390dc · sha256:33f80c46a8a33acc… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/gleam-lang/gleam/security/advisories/GHSA-qhh5-fg4c-8gqc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:498fcb02891cdbcaf16642ff3cf8a464d3f5efcb76697305c4dd65bdff1390dc · sha256:33f80c46a8a33acc… · /containers/adp/0/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-42795"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:498fcb02891cdbcaf16642ff3cf8a464d3f5efcb76697305c4dd65bdff1390dc · sha256:33f80c46a8a33acc… · /containers/cna/references/2

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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