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CVE Vulnerability Details :
CVE-2026-44373
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-13 May, 2026 | 20:26
Updated At-14 May, 2026 | 13:16
Rejected At-
▼CVE Numbering Authority (CNA)
Nitro: Proxy scope bypass via percent-encoded path traversal in `routeRules`

Nitro is a next generation server toolkit. Prior to 3.0.260429-beta, an attacker could bypass a proxy route rule by sending percent-encoded path traversal (..%2f) in the URL, causing Nitro to forward a request that the upstream resolved outside the configured scope. This vulnerability is fixed in 3.0.260429-beta.

Affected Products
Vendor
nitrojs
Product
nitro
Versions
Affected
  • < 3.0.260429-beta
Vendor
nitrojs
Product
nitropack
Versions
Affected
  • < 2.13.4
Problem Types
TypeCWE IDDescription
CWECWE-22CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Type: CWE
CWE ID: CWE-22
Description: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Metrics
VersionBase scoreBase severityVector
3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/nitrojs/nitro/security/advisories/GHSA-5w89-w975-hf9q
x_refsource_CONFIRM
https://github.com/nitrojs/nitro/pull/4222
x_refsource_MISC
https://github.com/nitrojs/nitro/pull/4223
x_refsource_MISC
https://github.com/nitrojs/nitro/releases/tag/v2.13.4
x_refsource_MISC
https://github.com/nitrojs/nitro/releases/tag/v3.0.260429-beta
x_refsource_MISC
Hyperlink: https://github.com/nitrojs/nitro/security/advisories/GHSA-5w89-w975-hf9q
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/nitrojs/nitro/pull/4222
Resource:
x_refsource_MISC
Hyperlink: https://github.com/nitrojs/nitro/pull/4223
Resource:
x_refsource_MISC
Hyperlink: https://github.com/nitrojs/nitro/releases/tag/v2.13.4
Resource:
x_refsource_MISC
Hyperlink: https://github.com/nitrojs/nitro/releases/tag/v3.0.260429-beta
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found