{"id":"GHSA-p3vc-36g9-x9gr","revision":null,"records":[{"revision":"4748cf402b794361924389748944ac68","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-50171","aliases":[],"title":"Angular: Denial of Service (DoS) via OOM in Number Formatting (digitsInfo)","description":"Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23, a Denial of Service (DoS) vulnerability exists in the @angular/common package of Angular. The formatNumber function, which is also utilized by DecimalPipe, PercentPipe, and CurrencyPipe, does not properly validate the upper bounds of the digitsInfo parameter. Specifically, the minimum and maximum fraction digits parsed from the digitsInfo string (e.g., 1.2-4) are converted to integers and used without limits. When parsing a maliciously crafted digitsInfo string with excessively large fraction digit values (e.g., 1.200000000-200000000), the internal roundNumber function attempts to pad the digits array to match the requested fraction size. This results in an unbounded loop that repeatedly pushes elements into an array.  This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.","state":0,"publishedAt":"2026-06-22T15:49:51.774+00:00","modifiedAt":"2026-06-23T16:02:07.902+00:00","affected":[{"ecosystem":"Vendor product","name":"angular","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"angular\",\n                    \"product\": \"angular\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 22.0.0-next.0, < 22.0.0-rc.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 21.0.0-next.0, < 21.2.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 20.0.0-next.0, < 20.3.22\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 19.0.0-next.0, < 19.2.23\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"<= 18.2.14\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.2,"severity":"HIGH"}],"references":["https://github.com/angular/angular/security/advisories/GHSA-p3vc-36g9-x9gr"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-50171","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-50171","identifiers":["CVE-2026-50171"]},"retained":false,"historicalAffected":[]},{"revision":"9386e3bc6f8e4225968e34a416de2c98","observedAt":"2026-11-13T14:01:58.838+00:00","statement":{"source":"euvd","id":"EUVD-2026-38298","aliases":["CVE-2026-50171","GHSA-p3vc-36g9-x9gr"],"title":"Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. 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This results in an unbounded loop that repeatedly pushes elements into an array.  This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.2,"severity":null}],"references":["https://github.com/angular/angular/security/advisories/GHSA-p3vc-36g9-x9gr"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-38298","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jun 22, 2026, 3:49:51 PM","dateUpdated":"Jun 23, 2026, 4:02:07 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. 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The formatNumber function, which is also utilized by DecimalPipe, PercentPipe, and CurrencyPipe, does not properly validate the upper bounds of the digitsInfo parameter. Specifically, the minimum and maximum fraction digits parsed from the digitsInfo string (e.g., 1.2-4) are converted to integers and used without limits. When parsing a maliciously crafted digitsInfo string with excessively large fraction digit values (e.g., 1.200000000-200000000), the internal roundNumber function attempts to pad the digits array to match the requested fraction size. This results in an unbounded loop that repeatedly pushes elements into an array.  This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.","state":0,"publishedAt":"2026-06-22T18:16:42.533+00:00","modifiedAt":"2026-07-09T15:41:41.163+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":8.2,"severity":"HIGH"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1,"severity":"MEDIUM"}],"references":["https://github.com/angular/angular/security/advisories/GHSA-p3vc-36g9-x9gr"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-50171","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-400","CWE-834"],"productCriteria":["cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:next0:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:next1:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:next10:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:next11:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:next12:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:next2:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:next3:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:next4:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:next5:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:next6:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:next7:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:next8:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:next9:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:rc0:*:*:*:node.js:*:*","cpe:2.3:a:angular:angular:22.0.0:rc1:*:*:*:node.js:*:*"],"sourceDates":{"published":"2026-06-22T18:16:42.533","lastModified":"2026-07-09T15:41:41.163"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. 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Specifically, the minimum and maximum fraction digits parsed from the `digitsInfo` string (e.g., `1.2-4`) are converted to integers and used without limits.\n\nWhen parsing a maliciously crafted `digitsInfo` string with excessively large fraction digit values (e.g., `1.200000000-200000000`), the internal `roundNumber` function attempts to pad the digits array to match the requested fraction size. This results in an unbounded loop that repeatedly pushes elements into an array.\n\n### Impact\n\nSuccessful exploitation of this vulnerability allows an attacker to trigger resource exhaustion, leading to a Denial of Service (DoS):\n\n* **Server-Side Rendering (SSR):** In applications using SSR (e.g., `@angular/ssr`), an attacker can crash the Node.js server process due to a `JavaScript heap out of memory` error. This affects the availability of the application for all users.  \n* **Client-Side Rendering (CSR):** In standard client-side applications, the unbounded loop will block the main thread, freezing the user's browser tab and making it unresponsive.\n\n### Attack Preconditions\n\nFor this vulnerability to be exploitable, the following conditions must be met:\n\n1. **Vulnerable Component Usage:** The application must use Angular's number formatting utilities, such as the `formatNumber` function directly, or via template pipes (`DecimalPipe`, `PercentPipe`, `CurrencyPipe`).  \n2. **Attacker-Controlled Parameter:** The `digitsInfo` parameter passed to these utilities must be customizable or directly controlled by untrusted user input (e.g., parsed from query parameters, user preference settings, or API responses that accept user-defined formatting options). If `digitsInfo` is trusted or limited to a known, defined range for its value, the vulnerability is not exploitable by external attackers.\n\n### Patches\n- 22.0.0-rc.2\n- 21.2.15\n- 20.3.22\n- 19.2.23\n\n### Credits\nThis vulnerability was discovered and reported by [CodeMender from Google DeepMind](https://deepmind.google/blog/introducing-codemender-an-ai-agent-for-code-security/).","state":0,"publishedAt":"2026-06-15T16:52:30+00:00","modifiedAt":"2026-09-10T03:51:09.1858643+00:00","affected":[{"ecosystem":"npm","name":"@angular/common","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"22.0.0-next.0"},{"kind":"fixed","version":"22.0.0-rc.2"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"@angular/common","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"20.0.0-next.0"},{"kind":"fixed","version":"20.3.22"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"@angular/common","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"19.0.0-next.0"},{"kind":"fixed","version":"19.2.23"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"@angular/common","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"last_affected","version":"18.2.14"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"@angular/common","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"21.0.0-next.0"},{"kind":"fixed","version":"21.2.15"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":null,"severity":null},{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/angular/angular/security/advisories/GHSA-p3vc-36g9-x9gr","https://nvd.nist.gov/vuln/detail/CVE-2026-50171","https://github.com/angular/angular/pull/68840","https://github.com/angular/angular"],"sourceUrl":"https://github.com/advisories/GHSA-p3vc-36g9-x9gr","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-p3vc-36g9-x9gr","identifiers":["GHSA-p3vc-36g9-x9gr","CVE-2026-50171"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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