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6 vulnerabilities by garycourt
CVE-2026-93751 (GCVE-0-2026-93751)
Vulnerability from nvd – Published: 2026-09-18 17:51 – Updated: 2026-09-18 17:51
VLAI
EPSS
VEX
Title
uri-js through 4.4.1 Improper UTF-8 Decoding via pctDecChars
Summary
uri-js through 4.4.1 contains an improper UTF-8 decoding vulnerability in pctDecChars() that decodes invalid and overlong percent-encoded sequences into ASCII metacharacters. Attackers can craft percent-encoded payloads to bypass platform decoder validation and inject path traversal or CRLF sequences that downstream consumers process without filtering.
Severity
6.5 (Medium)
CWE
- CWE-176 - Improper Handling of Unicode Encoding
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/garycourt/uri-js/issues/106 | issue-tracking |
| https://github.com/garycourt/uri-js | product |
| https://github.com/garycourt/uri-js/blob/a1acf730… | technical-description |
| https://www.vulncheck.com/advisories/uri-js-throu… | third-party-advisory |
Impacted products
Date Public
2026-09-17 00:00
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CVE-2026-93690 (GCVE-0-2026-93690)
Vulnerability from nvd – Published: 2026-09-18 15:06 – Updated: 2026-09-18 19:14
VLAI
EPSS
VEX
Title
uri-js through 4.4.1 Denial of Service via removeDotSegments
Summary
uri-js through 4.4.1 contains a denial of service vulnerability in the removeDotSegments function that loops infinitely when a path segment begins with Unicode line or paragraph separators. Attackers can trigger this by calling removeDotSegments directly or through normalize/resolve functions with IRI handling enabled, causing the Node.js event loop to block indefinitely until heap exhaustion.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 19:14 UTC
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/garycourt/uri-js/issues/105 | issue-tracking |
| https://github.com/garycourt/uri-js | product |
| https://github.com/garycourt/uri-js/blob/4.4.0/sr… | technical-description |
| https://github.com/garycourt/uri-js/blob/4.4.0/sr… | technical-description |
| https://www.npmjs.com/package/uri-js/v/4.4.1 | product |
| https://www.vulncheck.com/advisories/uri-js-throu… | third-party-advisory |
Impacted products
Date Public
2026-09-17 00:00
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CVE-2017-16021 (GCVE-0-2017-16021)
Vulnerability from nvd – Published: 2018-06-04 19:00 – Updated: 2024-09-17 01:46
VLAI
EPSS
VEX
Summary
uri-js is a module that tries to fully implement RFC 3986. One of these features is validating whether or not a supplied URL is valid or not. To do this, uri-js uses a regular expression, This regular expression is vulnerable to redos. This causes the program to hang and the CPU to idle at 100% usage while uri-js is trying to validate if the supplied URL is valid or not. To check if you're vulnerable, look for a call to `require("uri-js").parse()` where a user is able to send their own input. This affects uri-js 2.1.1 and earlier.
Severity
No CVSS data available.
CWE
- CWE-400 - Denial of Service (CWE-400)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/garycourt/uri-js/issues/12 | x_refsource_MISC |
| https://nodesecurity.io/advisories/100 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| HackerOne | uri-js node module |
Affected:
<=2.1.1
|
Date Public
2018-04-26 00:00
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CVE-2026-93751 (GCVE-0-2026-93751)
Vulnerability from cvelistv5 – Published: 2026-09-18 17:51 – Updated: 2026-09-18 17:51
VLAI
EPSS
VEX
Title
uri-js through 4.4.1 Improper UTF-8 Decoding via pctDecChars
Summary
uri-js through 4.4.1 contains an improper UTF-8 decoding vulnerability in pctDecChars() that decodes invalid and overlong percent-encoded sequences into ASCII metacharacters. Attackers can craft percent-encoded payloads to bypass platform decoder validation and inject path traversal or CRLF sequences that downstream consumers process without filtering.
Severity
6.5 (Medium)
CWE
- CWE-176 - Improper Handling of Unicode Encoding
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/garycourt/uri-js/issues/106 | issue-tracking |
| https://github.com/garycourt/uri-js | product |
| https://github.com/garycourt/uri-js/blob/a1acf730… | technical-description |
| https://www.vulncheck.com/advisories/uri-js-throu… | third-party-advisory |
Impacted products
Date Public
2026-09-17 00:00
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CVE-2026-93690 (GCVE-0-2026-93690)
Vulnerability from cvelistv5 – Published: 2026-09-18 15:06 – Updated: 2026-09-18 19:14
VLAI
EPSS
VEX
Title
uri-js through 4.4.1 Denial of Service via removeDotSegments
Summary
uri-js through 4.4.1 contains a denial of service vulnerability in the removeDotSegments function that loops infinitely when a path segment begins with Unicode line or paragraph separators. Attackers can trigger this by calling removeDotSegments directly or through normalize/resolve functions with IRI handling enabled, causing the Node.js event loop to block indefinitely until heap exhaustion.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 19:14 UTC
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/garycourt/uri-js/issues/105 | issue-tracking |
| https://github.com/garycourt/uri-js | product |
| https://github.com/garycourt/uri-js/blob/4.4.0/sr… | technical-description |
| https://github.com/garycourt/uri-js/blob/4.4.0/sr… | technical-description |
| https://www.npmjs.com/package/uri-js/v/4.4.1 | product |
| https://www.vulncheck.com/advisories/uri-js-throu… | third-party-advisory |
Impacted products
Date Public
2026-09-17 00:00
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CVE-2017-16021 (GCVE-0-2017-16021)
Vulnerability from cvelistv5 – Published: 2018-06-04 19:00 – Updated: 2024-09-17 01:46
VLAI
EPSS
VEX
Summary
uri-js is a module that tries to fully implement RFC 3986. One of these features is validating whether or not a supplied URL is valid or not. To do this, uri-js uses a regular expression, This regular expression is vulnerable to redos. This causes the program to hang and the CPU to idle at 100% usage while uri-js is trying to validate if the supplied URL is valid or not. To check if you're vulnerable, look for a call to `require("uri-js").parse()` where a user is able to send their own input. This affects uri-js 2.1.1 and earlier.
Severity
No CVSS data available.
CWE
- CWE-400 - Denial of Service (CWE-400)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/garycourt/uri-js/issues/12 | x_refsource_MISC |
| https://nodesecurity.io/advisories/100 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| HackerOne | uri-js node module |
Affected:
<=2.1.1
|
Date Public
2018-04-26 00:00
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