{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-27789", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2025-03-06T18:06:54.462Z", "datePublished": "2025-03-11T19:09:28.146Z", "dateUpdated": "2025-03-11T19:53:42.811Z"}, "containers": {"cna": {"title": "Inefficient RexExp complexity in generated code with .replace when transpiling named capturing groups", "problemTypes": [{"descriptions": [{"cweId": "CWE-1333", "lang": "en", "description": "CWE-1333: Inefficient Regular Expression Complexity", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/babel/babel/security/advisories/GHSA-968p-4wvh-cqc8", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/babel/babel/security/advisories/GHSA-968p-4wvh-cqc8"}, {"name": "https://github.com/babel/babel/pull/17173", "tags": ["x_refsource_MISC"], "url": "https://github.com/babel/babel/pull/17173"}], "affected": [{"vendor": "babel", "product": "babel", "versions": [{"version": "< 7.26.10", "status": "affected"}, {"version": ">= 8.0.0-alpha.0, < 8.0.0-alpha.17", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2025-03-11T19:09:28.146Z"}, "descriptions": [{"lang": "en", "value": "Babel is a compiler for writing next generation JavaScript. When using versions of Babel prior to 7.26.10 and 8.0.0-alpha.17 to compile regular expression named capturing groups, Babel will generate a polyfill for the `.replace` method that has quadratic complexity on some specific replacement pattern strings (i.e. the second argument passed to `.replace`). Generated code is vulnerable if all the following conditions are true: Using Babel to compile regular expression named capturing groups, using the `.replace` method on a regular expression that contains named capturing groups, and the code using untrusted strings as the second argument of `.replace`. This problem has been fixed in `@babel/helpers` and `@babel/runtime` 7.26.10 and 8.0.0-alpha.17. It's likely that individual users do not directly depend on `@babel/helpers`, and instead depend on `@babel/core` (which itself depends on `@babel/helpers`). Upgrading to `@babel/core` 7.26.10 is not required, but it guarantees use of a new enough `@babel/helpers` version. Note that just updating Babel dependencies is not enough; one will also need to re-compile the code. No known workarounds are available."}], "source": {"advisory": "GHSA-968p-4wvh-cqc8", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-03-11T19:53:22.902147Z", "id": "CVE-2025-27789", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-03-11T19:53:42.811Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-27789", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-03-11T19:53:22.902147Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-03-11T19:53:37.035Z"}}], "cna": {"title": "Inefficient RexExp complexity in generated code with .replace when transpiling named capturing groups", "source": {"advisory": "GHSA-968p-4wvh-cqc8", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.2, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "babel", "product": "babel", "versions": [{"status": "affected", "version": "< 7.26.10"}, {"status": "affected", "version": ">= 8.0.0-alpha.0, < 8.0.0-alpha.17"}]}], "references": [{"url": "https://github.com/babel/babel/security/advisories/GHSA-968p-4wvh-cqc8", "name": "https://github.com/babel/babel/security/advisories/GHSA-968p-4wvh-cqc8", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/babel/babel/pull/17173", "name": "https://github.com/babel/babel/pull/17173", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "Babel is a compiler for writing next generation JavaScript. When using versions of Babel prior to 7.26.10 and 8.0.0-alpha.17 to compile regular expression named capturing groups, Babel will generate a polyfill for the `.replace` method that has quadratic complexity on some specific replacement pattern strings (i.e. the second argument passed to `.replace`). Generated code is vulnerable if all the following conditions are true: Using Babel to compile regular expression named capturing groups, using the `.replace` method on a regular expression that contains named capturing groups, and the code using untrusted strings as the second argument of `.replace`. This problem has been fixed in `@babel/helpers` and `@babel/runtime` 7.26.10 and 8.0.0-alpha.17. It's likely that individual users do not directly depend on `@babel/helpers`, and instead depend on `@babel/core` (which itself depends on `@babel/helpers`). Upgrading to `@babel/core` 7.26.10 is not required, but it guarantees use of a new enough `@babel/helpers` version. Note that just updating Babel dependencies is not enough; one will also need to re-compile the code. No known workarounds are available."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-1333", "description": "CWE-1333: Inefficient Regular Expression Complexity"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2025-03-11T19:09:28.146Z"}}}, "cveMetadata": {"cveId": "CVE-2025-27789", "state": "PUBLISHED", "dateUpdated": "2025-03-11T19:53:42.811Z", "dateReserved": "2025-03-06T18:06:54.462Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2025-03-11T19:09:28.146Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.1"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Babel is a compiler for writing next generation JavaScript. When using versions of Babel prior to 7.26.10 and 8.0.0-alpha.17 to compile regular expression named capturing groups, Babel will generate a polyfill for the `.replace` method that has quadratic complexity on some specific replacement pattern strings (i.e. the second argument passed to `.replace`). Generated code is vulnerable if all the following conditions are true: Using Babel to compile regular expression named capturing groups, using the `.replace` method on a regular expression that contains named capturing groups, and the code using untrusted strings as the second argument of `.replace`. This problem has been fixed in `@babel/helpers` and `@babel/runtime` 7.26.10 and 8.0.0-alpha.17. It's likely that individual users do not directly depend on `@babel/helpers`, and instead depend on `@babel/core` (which itself depends on `@babel/helpers`). Upgrading to `@babel/core` 7.26.10 is not required, but it guarantees use of a new enough `@babel/helpers` version. Note that just updating Babel dependencies is not enough; one will also need to re-compile the code. No known workarounds are available."}, {"lang": "es", "value": "Babel es un compilador para escribir JavaScript de nueva generaci\u00f3n. Al usar versiones de Babel anteriores a la 7.26.10 y 8.0.0-alpha.17 para compilar grupos de captura con nombre de expresiones regulares, Babel generar\u00e1 un polyfill para el m\u00e9todo `.replace` con complejidad cuadr\u00e1tica en algunas cadenas de patrones de reemplazo espec\u00edficas (es decir, el segundo argumento pasado a `.replace`). El c\u00f3digo generado es vulnerable si se cumplen todas las siguientes condiciones: usar Babel para compilar grupos de captura con nombre de expresiones regulares, usar el m\u00e9todo `.replace` en una expresi\u00f3n regular que contenga grupos de captura con nombre y usar cadenas no confiables como segundo argumento de `.replace`. Este problema se ha corregido en `@babel/helpers` y `@babel/runtime` 7.26.10 y 8.0.0-alpha.17. Es probable que los usuarios individuales no dependan directamente de `@babel/helpers`, sino de `@babel/core` (que a su vez depende de `@babel/helpers`). No es necesario actualizar a `@babel/core` 7.26.10, pero garantiza el uso de una versi\u00f3n suficientemente nueva de `@babel/helpers`. Tenga en cuenta que actualizar las dependencias de Babel no es suficiente; tambi\u00e9n ser\u00e1 necesario recompilar el c\u00f3digo. No se conocen workarounds."}], "id": "CVE-2025-27789", "lastModified": "2026-04-15T00:35:42.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2025-03-11T20:15:18.330", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/babel/babel/pull/17173"}, {"source": "security-advisories@github.com", "url": "https://github.com/babel/babel/security/advisories/GHSA-968p-4wvh-cqc8"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1333"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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