oak: ReDoS in x-forwarded-proto and x-forwarded-for headers
Published Aug 9, 2025
5.3
MEDIUMCVSS 3.1
EPSS 0.39%
Description
oak is a middleware framework for Deno's native HTTP server, Deno Deploy, Node.js 16.5 and later, Cloudflare Workers and Bun. In versions 17.1.5 and below, it's possible to significantly slow down an oak server with specially crafted values of the x-forwarded-proto or x-forwarded-for headers.
Affected products
-
- Version < 17.1.6StatusaffectedConstraints-
- Version
No data.
No data.
No Red Hat product state for this CVE.
@oakserver/oak
npm
Introduced 0 Fixed not fixed
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | @oakserver/oak | 0 | not fixed |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Aug 11, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.39% (0.00388) | 30.41th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.36% (0.00362) | 27.79th | v5 (v2026.06.15) |
| Aug 9, 2025 | 0.04% (0.00039) | 10.46th | v4 (v2025.03.14) |
References (6)
- https://github.com/advisories/GHSA-r3v7-pc4g-7xp9 Advisory
- https://github.com/oakserver/oak/blob/v17.1.5/request.ts#L142
- https://github.com/oakserver/oak/blob/v17.1.5/request.ts#L87
- https://github.com/oakserver/oak/commit/b60e60330ef227707c4dc13ef0ea36192d894f44 x_refsource_MISC
- https://github.com/oakserver/oak/security/advisories/GHSA-r3v7-pc4g-7xp9 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2025-55152
Change history (0)
No recorded changes yet.