FKIE_CVE-2026-49356

Vulnerability from fkie_nvd - Published: 2026-06-22 18:16 - Updated: 2026-06-26 20:04
Severity
3.2 (Low) - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
3.6 (Low) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Summary
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 and 7.29.6.
References
security-advisories@github.comhttps://github.com/babel/babel/security/advisories/GHSA-4x5r-pxfx-6jf8Mitigation, Vendor Advisory
Impacted products
Vendor Product Version
babel babel *
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
babel babel 8.0.0
To clipboard 

{
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    }
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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 and 7.29.6."
    }
  ],
  "id": "CVE-2026-49356",
  "lastModified": "2026-06-26T20:04:23.897",
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          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 3.2,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
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          "privilegesRequired": "NONE",
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              "automatable": "no"
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            {
              "technicalImpact": "partial"
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          "role": "CISA Coordinator",
          "timestamp": "2026-06-22T17:22:57.466209Z",
          "version": "2.0.3"
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  "published": "2026-06-22T18:16:41.107",
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      "tags": [
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.