nodejs-method-override: Regular expression Denial of Service
Published Jun 7, 2018
7.5
HIGHCVSS 3.0
EPSS 1.21%
Description
method-override is a module used by the Express.js framework to let you use HTTP verbs such as PUT or DELETE in places where the client doesn't support it. method-override is vulnerable to a regular expression denial of service vulnerability when specially crafted input is passed in to be parsed via the X-HTTP-Method-Override header.
Affected products
-
- Version <= 1.0.2 || > 2.0.0 < 2.3.10StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| HackerOne | Method-Override Node Module | n/a |
|
- < 2.3.10
No data.
Red Hat Mobile Application Platform 4
fh-ngui
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Mobile Application Platform 4 | fh-ngui | Not affected | n/a |
method-override
npm
Introduced 2.0.0 Fixed 2.3.10method-override
npm
Introduced 1.0.2 Fixed 2.3.10
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | method-override | 2.0.0 | 2.3.10 |
| npm | method-override | 1.0.2 | 2.3.10 |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.21% (0.01215) | 67.45th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.21% (0.01215) | 67.20th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.11% (0.00112) | 44.98th | v3 (v2023.03.01) |
| Mar 5, 2024 | 0.11% (0.00112) | 43.45th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00103) | 40.66th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.52% (0.00518) | 11.68th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.52% (0.00518) | 0.00th | v1 |
References (8)
- https://access.redhat.com/security/cve/CVE-2017-16136 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1500711 Issue Tracking
- https://github.com/advisories/GHSA-qx2f-477c-35rq Advisory
- https://github.com/expressjs/method-override/commit/4c58835a61fdf7a8e070d6f8ecd5379a961d0987
- https://nodesecurity.io/advisories/538 x_refsource_MISCThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-16136
- https://www.cve.org/CVERecord?id=CVE-2017-16136
- https://www.npmjs.com/advisories/538
Change history (0)
No recorded changes yet.