HOMEVULNERABILITIESCVE-2026-33732
MEDIUM

CVE-2026-33732

CWE-706Published: March 26, 2026· Updated: Mar 30, 2026

4.8
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:7.6th

Official Description

srvx 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.

NVD Source

Technical Analysis

CVE-2026-33732 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected Vendors & Products

Mentioned vendors (from description):
Node.js
CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

All References (3)

→
https://github.com/h3js/h3/security/advisories/GHSA-p36q-q72m-gchr
→
https://github.com/h3js/srvx/commit/de0d69901c357f36a39b7e13eebef6c930652baa
→
https://github.com/h3js/srvx/releases/tag/v0.11.13

Quick Facts

CVE IDCVE-2026-33732
CVSS Score4.8 / 10
SeverityMEDIUM
WeaknessCWE-706
CISA KEVNo
EPSS (30d)0.03%
PublishedMar 26, 2026

Related CVEs (CWE-706)

CVE-2026-35666
8.8
CVE-2026-40912
8.2
CVE-2026-10696
7.5
CVE-2026-13372
7.2
CVE-2026-1230
6.5
CVE-2026-35635
6.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-33732 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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