{"answers":{"affected":"4 open source packages ship an affected version, including @babel/core. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-49356 in the wild and no public exploit code.","fix":"Upgrade @babel/core to a fixed version for your release line: 7.29.6 or 8.0.0-rc.6.","what":"CVE-2026-49356 is a low-severity path traversal vulnerability in babel, published on 22 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-49356 and fix it if it is affected.\n\nWhat it is: CVE-2026-49356 is a low-severity path traversal vulnerability in babel, published on 22 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-49356 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @babel/core (npm): affected all versions; fixed in 7.29.6\n- @babel/core (npm): affected all versions; fixed in 7.29.6\n- @babel/core (npm): affected from 8.0.0-alpha.0; fixed in 8.0.0-rc.6\n- @babel/core (npm): affected from 8.0.0-alpha.0; fixed in 8.0.0-rc.6\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-49356/ (Markdown: https://insights.sbomify.com/CVE-2026-49356/index.md)","id":"CVE-2026-49356","markdown":"https://insights.sbomify.com/CVE-2026-49356/index.md","name":"CVE-2026-49356","record":{"aliases":["CLEANSTART-2026-SW35830","CLSA-2026-1784596301","CLSA-2026-1790109160","CLSA-2026-1790181820","CLSA-2026-1790212818","CLSA-2026-1792160971","CLSA-2026-1792160977","CLSA-2026-1792161421","CLSA-2026-1792161428","CLSA-2026-1792161619","CLSA-2026-1792161630","CLSA-2026-1792161633","CLSA-2026-1792161634","CLSA-2026-1792161669","CLSA-2026-1792161734","CLSA-2026-1792161742","CLSA-2026-1792161744","CLSA-2026-1792161746","CLSA-2026-1792161837","CLSA-2026-1792161889","CLSA-2026-1792161897","CLSA-2026-1792161899","CLSA-2026-1792161900","CLSA-2026-1792161960","CLSA-2026-1792161986","CLSA-2026-1792161993","CLSA-2026-1792162027","CLSA-2026-1792162052","CLSA-2026-1792162077","CLSA-2026-1792162092","CLSA-2026-1792162098","CLSA-2026-1792162116","CLSA-2026-1792162121","CLSA-2026-1792162140","CLSA-2026-1792162159","CLSA-2026-1792162165","CLSA-2026-1792162181","CLSA-2026-1792162187","CLSA-2026-1792162211","CLSA-2026-1792162220","CLSA-2026-1792162222","CLSA-2026-1792162223","CLSA-2026-1792163449","CLSA-2026-1792163452","CLSA-2026-1792163453","CLSA-2026-1792194431","CLSA-2026-1792194435","CLSA-2026-1792194451","CLSA-2026-1792201266","CLSA-2026-1792201269","CLSA-2026-1792232596","CLSA-2026-1792241959","CLSA-2026-1792278639","CLSA-2026-1792278642","CLSA-2026-1792278649","CLSA-2026-1792283510","CLSA-2026-1792283516","CLSA-2026-1792283520","CLSA-2026-1792285565","CLSA-2026-1792285568","CLSA-2026-1792285572","CLSA-2026-1792286713","CLSA-2026-1792286716","CLSA-2026-1792286720","CLSA-2026-1792289875","CLSA-2026-1792289877","CLSA-2026-1792291420","CLSA-2026-1792291424","CLSA-2026-1792291428","CLSA-2026-1792292301","CLSA-2026-1792292303","CLSA-2026-1792302624","CLSA-2026-1792302629","CLSA-2026-1792304212","CLSA-2026-1792304219","CLSA-2026-1792304224","CLSA-2026-1792304225","CLSA-2026-1792306784","CLSA-2026-1792308467","CLSA-2026-1792309335","CLSA-2026-1792312964","CLSA-2026-1792312967","CLSA-2026-1792342441","CLSA-2026-1792342444","CLSA-2026-1792342452","CLSA-2026-1792342454","CLSA-2026-1792361349","CLSA-2026-1792361352","CLSA-2026-1792361358","CLSA-2026-1792369492","CLSA-2026-1792369495","CLSA-2026-1792369504","CLSA-2026-1792369505","CLSA-2026-1792373913","CLSA-2026-1792373921","CLSA-2026-1792373922","CLSA-2026-1792373927","CLSA-2026-1792373929","CLSA-2026-1792378047","CLSA-2026-1792378050","CLSA-2026-1792378053","CLSA-2026-1792384640","CLSA-2026-1792384642","CLSA-2026-1792384644","CLSA-2026-1792388614","CLSA-2026-1792388618","CLSA-2026-1792388622","CLSA-2026-1792393378","CLSA-2026-1792393379","CLSA-2026-1792393383","CLSA-2026-1792411626","CLSA-2026-1792411629","CLSA-2026-1792411633","CLSA-2026-1792411638","CLSA-2026-1792418550","CLSA-2026-1792418554","CLSA-2026-1792418558","CLSA-2026-1792418562","CLSA-2026-1792421257","CLSA-2026-1792421266","CLSA-2026-1792421268","CLSA-2026-1792421269","CLSA-2026-1792421282","CLSA-2026-1792423753","CLSA-2026-1792423762","CLSA-2026-1792423763","CLSA-2026-1792423774","CLSA-2026-1792423780","CLSA-2026-1792426994","CLSA-2026-1792426999","CLSA-2026-1792427003","CLSA-2026-1792432139","CLSA-2026-1792432145","CLSA-2026-1792432149","CLSA-2026-1792435129","CLSA-2026-1792435132","CLSA-2026-1792435138","CLSA-2026-1792438115","CLSA-2026-1792438118","CLSA-2026-1792438119","CLSA-2026-1792438124","CLSA-2026-1792440912","CLSA-2026-1792440921","CLSA-2026-1792440930","CLSA-2026-1792444947","CLSA-2026-1792444949","CLSA-2026-1792444953","CLSA-2026-1792447093","CLSA-2026-1792447094","CLSA-2026-1792447100","CLSA-2026-1792447101","CLSA-2026-1792448758","CLSA-2026-1792448760","CLSA-2026-1792448763","CLSA-2026-1792452565","CLSA-2026-1792452569","CLSA-2026-1792452575","CLSA-2026-1792452576","CLSA-2026-1792452589","CLSA-2026-1792455074","CLSA-2026-1792455079","CLSA-2026-1792455085","CLSA-2026-1792455086","CLSA-2026-1792455100","CLSA-2026-1792457907","CLSA-2026-1792457912","CLSA-2026-1792457917","CLSA-2026-1792460541","CLSA-2026-1792460548","CLSA-2026-1792460551","CLSA-2026-1792461784","CLSA-2026-1792461787","CLSA-2026-1792486524","CLSA-2026-1792486527","CLSA-2026-1792486531","CLSA-2026-1792486532","CLSA-2026-1792489214","CLSA-2026-1792489218","CLSA-2026-1792494691","CLSA-2026-1792494695","CLSA-2026-1792494699","CLSA-2026-1792495996","CLSA-2026-1792495998","CLSA-2026-1792496003","CLSA-2026-1792496009","CLSA-2026-1792496620","CLSA-2026-1792496623","CLSA-2026-1792498116","CLSA-2026-1792498122","CLSA-2026-1792498127","CLSA-2026-1792498129","CLSA-2026-1792499601","CLSA-2026-1792499606","CLSA-2026-1792499610","CLSA-2026-1792500788","CLSA-2026-1792502891","CLSA-2026-1792502895","CLSA-2026-1792502900","CLSA-2026-1792504876","CLSA-2026-1792504881","CLSA-2026-1792504885","CLSA-2026-1792506471","CLSA-2026-1792506475","CLSA-2026-1792506480","CLSA-2026-1792508334","CLSA-2026-1792508338","CLSA-2026-1792508341","CLSA-2026-1792509040","CLSA-2026-1792510077","C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compiler library","requires_auth":"none","summary":"Attackers can read arbitrary source map files from the system by crafting malicious input code processed by Babel, exposing sensitive source code.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"babel","vendor":"babel"}],"cvss":{"score":3.2,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"},{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"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.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Babel: Arbitrary File Read via sourceMappingURL Comment in @babel/core","id":"CVE-2026-49356","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":4,"n_references":1,"next":{"headline":"Streamable HTTP mode exposes LINE Desktop read/send tools without MCP authentication","id":"CVE-2026-49357"},"packages":[{"ecosystem":"npm","fixed":["7.29.6"],"introduced":["0"],"last_affected":[],"package":"@babel/core","purl":null,"source":"GHSA-4x5r-pxfx-6jf8"},{"ecosystem":"npm","fixed":["7.29.6"],"introduced":["0"],"last_affected":[],"package":"@babel/core","purl":"pkg:npm/%40babel/core","source":"GHSA-4x5r-pxfx-6jf8"},{"ecosystem":"npm","fixed":["8.0.0-rc.6"],"introduced":["8.0.0-alpha.0"],"last_affected":[],"package":"@babel/core","purl":null,"source":"GHSA-4x5r-pxfx-6jf8"},{"ecosystem":"npm","fixed":["8.0.0-rc.6"],"introduced":["8.0.0-alpha.0"],"last_affected":[],"package":"@babel/core","purl":"pkg:npm/%40babel/core","source":"GHSA-4x5r-pxfx-6jf8"}],"prev":{"headline":"OpenProject: Private work package data disclosure through single meeting agenda item API","id":"CVE-2026-49355"},"products":["babel"],"published":"2026-06-22","related":[{"cvss_score":8.2,"headline":"@babel/plugin-transform-modules-systemjs generates arbitrary code when compiling malicious input","id":"CVE-2026-44728","kev_date_added":null,"published":"2026-05-26"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-22","vendors":["babel"]},"summary":"Attackers can read arbitrary source map files from the system by crafting malicious input code processed by Babel, exposing sensitive source code.","url":"https://insights.sbomify.com/CVE-2026-49356/"}