GHSA-48r7-hpm6-gfxm is a high-severity (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in @angular/common. A fix is available for @angular/common — see the affected versions and patch details below.
@angular/common: Denial of Service (DoS) via OOM in Date Formatting (formatDate)
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for GHSA-48r7-hpm6-gfxm.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
GHSA-48r7-hpm6-gfxm plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 379,145 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
@angular/commonnpmDescription
A Denial of Service (DoS) vulnerability exists in the @angular/common package of the Angular framework. The formatDate function, which is also utilized by the standard Angular DatePipe, does not properly limit or validate the length of the format parameter.
When parsing a maliciously crafted, excessively long date format string (e.g., a repeating pattern or very large string), the internal parser splits the string iteratively using a regular expression loop. This results in uncontrolled resource consumption (high CPU utilization and excessive memory allocations), leading to a Denial of Service (DoS).
Impact
1. Server-Side Rendering (SSR)
In Angular applications that leverage Server-Side Rendering, an attacker can supply a malicious payload with an excessively long date format string. Processing this on the server causes high CPU usage and triggers a JavaScript heap out of memory crash, rendering the application unavailable to all users.
2. Client-Side Rendering (CSR)
In standard client-side applications, executing the vulnerable function with an excessively long format string blocks the browser's main thread, causing the browser tab to freeze and become completely unresponsive.
Patched Versions
- 22.0.1
- 21.2.17
- 20.3.25
Attack Preconditions
For this vulnerability to be exploitable, both of the following conditions must be met:
- Vulnerable Component Usage: The application must format dates using the
formatDateutility or theDatePipe. - Attacker-Controlled Parameter: The date format string passed to these utilities must be customizable or directly controlled by untrusted user input (e.g., parsed from query parameters, user preferences, or API responses).
If the date format is hardcoded (e.g., 'mediumDate', 'shortTime', or static strings) or properly validated to be within a reasonable length limit, the application is not vulnerable.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @angular/common | ≥ 22.0.0-next.0&&< 22.0.1 | 22.0.1npm install @angular/common@22.0.1 |
| 📦npm | @angular/common | ≥ 21.0.0-next.0&&< 21.2.17 | 21.2.17npm install @angular/common@21.2.17 |
| 📦npm | @angular/common | ≥ 20.0.0-next.0&&< 20.3.25 | 20.3.25npm install @angular/common@20.3.25 |
| 📦npm | @angular/common | all versions | No fix |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @angular/common, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update @angular/common to 22.0.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-48r7-hpm6-gfxm is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-48r7-hpm6-gfxm can be triaged on real exposure rather than presence alone.
Tailored to GHSA-48r7-hpm6-gfxm. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-48r7-hpm6-gfxm in your dependencies?
O3 Security finds GHSA-48r7-hpm6-gfxm across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.