---
title: "ruby-lang webrick vulnerabilities and CVEs"
url: https://radicalnotion.ai/vendor/rubylang/webrick
type: product
description: "ruby-lang webrick has 5 published CVEs, 0 in CISA KEV and 2 with public exploits."
updated: 2025-06-25
source: RadicalNotion.AI
license: CC BY-NC 4.0 (https://creativecommons.org/licenses/by-nc/4.0/)
---

# ruby-lang webrick vulnerabilities

Vendor: [ruby-lang](https://radicalnotion.ai/vendor/rubylang)

- **Published CVEs:** 5
- **In CISA KEV:** 0
- **With a public exploit:** 2
- **With a patch:** 4
- **Average CVSS:** 6.3
- **First CVE:** 2008-03-04
- **Latest CVE:** 2025-06-25
- **Platforms:** ruby

## Severity breakdown

| Severity | CVEs |
| --- | --- |
| Critical | 0 |
| High | 2 |
| Medium | 3 |
| Low | 0 |
| Unscored | 0 |

## Most common weakness types

| CWE | Name | CVEs |
| --- | --- | --- |
| [CWE-22](https://radicalnotion.ai/cwe/cwe-22) | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | 2 |
| [CWE-444](https://radicalnotion.ai/cwe/cwe-444) | Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') | 2 |

## CVEs by year

| Year | CVEs published |
| --- | --- |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 0 |
| 2022 | 0 |
| 2023 | 0 |
| 2024 | 0 |
| 2025 | 1 |

## Affected versions

| Version | Kind | CVEs |
| --- | --- | --- |
| \< 1.8.2 | range | 1 |
| \<= 1.6.0 | range | 1 |
| 1.3.1 | range | 1 |
| 1.4.2 | range | 1 |
| 1.8.2 | patched | 1 |

## CVEs

| CVE | Title | Severity | CVSS | CISA KEV | Public exploit | Patch |
| --- | --- | --- | --- | --- | --- | --- |
| CVE-2025-6442 | Ruby WEBrick read\_header HTTP Request Smuggling Vulnerability | medium | 5.9 | No | No | Yes |
| CVE-2020-25613 | WEBRick vulnerable to HTTP Request/Response Smuggling | high | 7.5 | No | No | Yes |
| CVE-2019-11879 | - | medium | 5.5 | No | No | No |
| CVE-2009-4492 | WEBrick Improper Input Validation vulnerability | high | 7.5 | No | Yes | Yes |
| CVE-2008-1145 | - | medium | 5.0 | No | Yes | Yes |

## Frequently asked questions

### How many CVEs does ruby-lang webrick have?

ruby-lang webrick has 5 published CVE records since 2008.

### How many ruby-lang webrick CVEs are in CISA KEV?

None of ruby-lang webrick's CVEs are currently listed in CISA's Known Exploited Vulnerabilities catalog.

### Are there public exploits for ruby-lang webrick vulnerabilities?

Yes — 2 of ruby-lang webrick's CVEs have a known public exploit.

### Which versions of ruby-lang webrick are affected?

5 distinct ruby-lang webrick versions are named across its CVEs. Use the version filter above to see the CVEs affecting a specific version.

### What are the most common weakness types in ruby-lang webrick CVEs?

ruby-lang webrick's CVEs most often map to these CWE weakness types: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')), CWE-444 (Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')).

### What is the average severity of ruby-lang webrick CVEs?

The average CVSS base score across ruby-lang webrick's scored CVEs is 6.3.

## Other products from this vendor

- [Ruby](https://radicalnotion.ai/vendor/rubylang/ruby) (115 CVEs)
- [rexml](https://radicalnotion.ai/vendor/rubylang/rexml) (8 CVEs)
- [net::imap](https://radicalnotion.ai/vendor/rubylang/net-imap) (6 CVEs)
- [CGI](https://radicalnotion.ai/vendor/rubylang/cgi) (5 CVEs)
- [URI](https://radicalnotion.ai/vendor/rubylang/uri) (4 CVEs)
- [openssl](https://radicalnotion.ai/vendor/rubylang/openssl) (2 CVEs)
- [rdoc](https://radicalnotion.ai/vendor/rubylang/rdoc) (2 CVEs)
- [date](https://radicalnotion.ai/vendor/rubylang/date) (1 CVEs)

---

Source: [RadicalNotion.AI](https://radicalnotion.ai/vendor/rubylang/webrick). Licensed CC BY-NC 4.0; attribute RadicalNotion.AI and link the source page when you reuse this data.