CVE Explorer

CVE-2026-49356

Babel is a compiler for writing next generation JavaScript. Prior to 8.0.0-rc.6 and 7.29.6, @babel/core affected by an arbitrary file read via a sourceMappingURL comment. Using @babel/core to compile maliciously crafted code can allow an attacker to read any source map from the system that is running Babel, if the attacker controls the input source code, can read the output source code, and knows the path of the source map file that they want to read. This vulnerability is fixed in 8.0.0-rc.6 an

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:cc62407183d40e55feea7bbda2835fa435308db587a1b73f04c67e654a7f9c74

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"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:v2:4e55a40ae7aa2f592f37974cbe77a75d0121a1c7bd2c8b688b53abe682fc5678 · sha256:a02bef5a8880a8c7… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:4e55a40ae7aa2f592f37974cbe77a75d0121a1c7bd2c8b688b53abe682fc5678 · sha256:a02bef5a8880a8c7… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion

{"product":"babel","vendor":"babel","versions":[{"status":"affected","version":">= 8.0.0-alpha.0, < 8.0.0-rc.5"},{"status":"affected","version":"< 7.29.6"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:4e55a40ae7aa2f592f37974cbe77a75d0121a1c7bd2c8b688b53abe682fc5678 · sha256:a02bef5a8880a8c7… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":3.2,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:4e55a40ae7aa2f592f37974cbe77a75d0121a1c7bd2c8b688b53abe682fc5678 · sha256:a02bef5a8880a8c7… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions

{"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:v2:4e55a40ae7aa2f592f37974cbe77a75d0121a1c7bd2c8b688b53abe682fc5678 · sha256:a02bef5a8880a8c7… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:4e55a40ae7aa2f592f37974cbe77a75d0121a1c7bd2c8b688b53abe682fc5678 · sha256:a02bef5a8880a8c7… · /containers/cna/problemTypes/1/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/babel/babel/security/advisories/GHSA-4x5r-pxfx-6jf8","tags":["x_refsource_CONFIRM"],"url":"https://github.com/babel/babel/security/advisories/GHSA-4x5r-pxfx-6jf8"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:4e55a40ae7aa2f592f37974cbe77a75d0121a1c7bd2c8b688b53abe682fc5678 · sha256:a02bef5a8880a8c7… · /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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