srvx is vulnerable to middleware bypass via absolute URI in request line

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2026-33732
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-26 18:16:31 UTC
Updated2026-04-02 18:41:11 UTC
Descriptionsrvx is a universal server based on web standards. Prior to version 0.11.13, a pathname parsing discrepancy in srvx's `FastURL` allows middleware bypass on the Node.js adapter when a raw HTTP request uses an absolute URI with a non-standard scheme (e.g. `file://`). Starting in version 0.11.13, the `FastURL` constructor now deopts to native `URL` for any string not starting with `/`, ensuring consistent pathname resolution.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.000360000 probability, percentile 0.106020000 (date 2026-04-02)

Problem Types: CWE-706 | CWE-706 CWE-706: Use of Incorrectly-Resolved Name or Reference

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
3.1[email protected]Secondary4.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
3.1CNADECLARED4.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application H3 Srvx All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA H3js Srvx affected < 0.11.13 Not specified

References

ReferenceSourceLinkTags
github.com/h3js/srvx/releases/tag/v0.11.13 [email protected] github.com Release Notes
github.com/h3js/h3/security/advisories/GHSA-p36q-q72m-gchr [email protected] github.com Mitigation, Vendor Advisory
github.com/h3js/srvx/commit/de0d69901c357f36a39b7e13eebef6c930652baa [email protected] github.com Patch
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