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CVE-2026-67182 (GCVE-0-2026-67182)

Vulnerability from nvd – Published: 2026-07-28 16:18 – Updated: 2026-07-28 17:10 X_Open Source

Title

Rouille 0.3.3 - 3.6.2 HTTP Request Smuggling via proxy Header Injection

Summary

Rouille 0.3.3 through 3.6.2 contains an HTTP request smuggling vulnerability that allows remote attackers to bypass access controls by injecting bare line feed characters (0x0A) into client-supplied request header values that are copied verbatim to upstream connections without validation. Attackers can craft a header value containing a complete additional HTTP request that is interpreted as a separate request by backends such as Go net/http and Python http.server, causing the backend to process a smuggled request with attacker-chosen method, path, and headers that bypasses the rouille handler's access control logic.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:L/SA:N

7.5 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Assigner

VulnCheck

References

2 references

URL	Tags
https://github.com/theopaid/HTTP-Request-Smugglin…	technical-descriptionexploit
https://www.vulncheck.com/advisories/rouille-http…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
tomaka	rouille	Affected: 0.3.3 , ≤ 3.6.2 (semver)

Date Public

2026-07-26 00:00

Credits

Theodosis Paidakis

Show details on NVD website

JSON

To clipboard

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CVE-2026-67181 (GCVE-0-2026-67181)

Vulnerability from nvd – Published: 2026-07-28 16:10 – Updated: 2026-07-28 16:35 X_Open Source

Title

Rouille 0.3.3 - 3.6.2 HTTP Request Smuggling via proxy Transfer-Encoding Header

Summary

Rouille 0.3.3 through 3.6.2 contains an HTTP request smuggling vulnerability that allows remote attackers to desynchronize HTTP message boundaries by exploiting improper header forwarding in the proxy implementation. The proxy in src/proxy.rs forwards the client's Transfer-Encoding header to upstream backends unchanged while transmitting a body already de-chunked by tiny_http, enabling CL.TE desynchronization attacks where attackers control where the backend believes the request body ends.

Severity

6.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N

5.4 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Assigner

VulnCheck

References

2 references

URL	Tags
https://github.com/theopaid/HTTP-Request-Smugglin…	technical-descriptionexploit
https://www.vulncheck.com/advisories/rouille-http…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
tomaka	rouille	Affected: 0.3.3 , ≤ 3.6.2 (semver)

Date Public

2026-07-26 00:00

Credits

Theodosis Paidakis

Show details on NVD website

JSON

To clipboard

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CVE-2026-66754 (GCVE-0-2026-66754)

Vulnerability from nvd – Published: 2026-07-28 16:04 – Updated: 2026-07-28 16:18 X_Open Source

Title

Rouille 0.1.6 - 3.6.2 Reachable Assertion DoS via remove_prefix percent-encoding

Summary

Rouille 0.1.6 through 3.6.2 contains a reachable assertion vulnerability in the Request::remove_prefix function that allows remote unauthenticated attackers to crash the server by sending a crafted percent-encoded URL. Attackers can send a request whose decoded path matches a configured prefix while the raw percent-encoded path does not, causing the assert! to fail and triggering either a 500 error or full process termination depending on the panic configuration.

Severity

8.2 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

5.9 (Medium)


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

CWE

CWE-617 - Reachable Assertion

Assigner

VulnCheck

References

2 references

URL	Tags
https://github.com/theopaid/Remote-Denial-of-Serv…	technical-descriptionexploit
https://www.vulncheck.com/advisories/rouille-reac…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
tomaka	rouille	Affected: 0.1.6 , ≤ 3.6.2 (semver)

Date Public

2026-07-26 00:00

Credits

Theodosis Paidakis

Show details on NVD website

JSON

To clipboard

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CVE-2026-66746 (GCVE-0-2026-66746)

Vulnerability from nvd – Published: 2026-07-28 16:06 – Updated: 2026-07-28 16:06 X_Open Source

Title

Rouille 0.4.0 - 3.6.2 HTTP Response Splitting via Header Injection

Summary

Rouille 0.4.0 through 3.6.2 contains an HTTP response splitting vulnerability that allows remote attackers to inject arbitrary response headers by embedding carriage return (0x0D) or line feed (0x0A) bytes into attacker-controlled input. Attackers can exploit percent-decoded query parameters reflected into response headers or inject bare LF characters into Cookie header values that are interpolated directly into Set-Cookie response headers, enabling cache poisoning, session fixation, and security header override attacks such as bypassing CSP or CORS policies.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

5.4 (Medium)


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

CWE

CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')

Assigner

VulnCheck

References

2 references

URL	Tags
https://github.com/theopaid/HTTP-Response-Splitti…	technical-descriptionexploit
https://www.vulncheck.com/advisories/rouille-http…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
tomaka	rouille	Affected: 0.4.0 , ≤ 3.6.2 (semver)

Date Public

2026-07-26 00:00

Credits

Theodosis Paidakis

Show details on NVD website

JSON

To clipboard

{
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        {
          "defaultStatus": "affected",
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CVE-2026-67182 (GCVE-0-2026-67182)

Vulnerability from cvelistv5 – Published: 2026-07-28 16:18 – Updated: 2026-07-28 17:10 X_Open Source

Title

Rouille 0.3.3 - 3.6.2 HTTP Request Smuggling via proxy Header Injection

Summary

Rouille 0.3.3 through 3.6.2 contains an HTTP request smuggling vulnerability that allows remote attackers to bypass access controls by injecting bare line feed characters (0x0A) into client-supplied request header values that are copied verbatim to upstream connections without validation. Attackers can craft a header value containing a complete additional HTTP request that is interpreted as a separate request by backends such as Go net/http and Python http.server, causing the backend to process a smuggled request with attacker-chosen method, path, and headers that bypasses the rouille handler's access control logic.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:L/SA:N

7.5 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Assigner

VulnCheck

References

2 references

URL	Tags
https://github.com/theopaid/HTTP-Request-Smugglin…	technical-descriptionexploit
https://www.vulncheck.com/advisories/rouille-http…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
tomaka	rouille	Affected: 0.3.3 , ≤ 3.6.2 (semver)

Date Public

2026-07-26 00:00

Credits

Theodosis Paidakis

Show details on NVD website

JSON

To clipboard

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CVE-2026-67181 (GCVE-0-2026-67181)

Vulnerability from cvelistv5 – Published: 2026-07-28 16:10 – Updated: 2026-07-28 16:35 X_Open Source

Title

Rouille 0.3.3 - 3.6.2 HTTP Request Smuggling via proxy Transfer-Encoding Header

Summary

Rouille 0.3.3 through 3.6.2 contains an HTTP request smuggling vulnerability that allows remote attackers to desynchronize HTTP message boundaries by exploiting improper header forwarding in the proxy implementation. The proxy in src/proxy.rs forwards the client's Transfer-Encoding header to upstream backends unchanged while transmitting a body already de-chunked by tiny_http, enabling CL.TE desynchronization attacks where attackers control where the backend believes the request body ends.

Severity

6.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N

5.4 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Assigner

VulnCheck

References

2 references

URL	Tags
https://github.com/theopaid/HTTP-Request-Smugglin…	technical-descriptionexploit
https://www.vulncheck.com/advisories/rouille-http…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
tomaka	rouille	Affected: 0.3.3 , ≤ 3.6.2 (semver)

Date Public

2026-07-26 00:00

Credits

Theodosis Paidakis

Show details on NVD website

JSON

To clipboard

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CVE-2026-66746 (GCVE-0-2026-66746)

Vulnerability from cvelistv5 – Published: 2026-07-28 16:06 – Updated: 2026-07-28 16:06 X_Open Source

Title

Rouille 0.4.0 - 3.6.2 HTTP Response Splitting via Header Injection

Summary

Rouille 0.4.0 through 3.6.2 contains an HTTP response splitting vulnerability that allows remote attackers to inject arbitrary response headers by embedding carriage return (0x0D) or line feed (0x0A) bytes into attacker-controlled input. Attackers can exploit percent-decoded query parameters reflected into response headers or inject bare LF characters into Cookie header values that are interpolated directly into Set-Cookie response headers, enabling cache poisoning, session fixation, and security header override attacks such as bypassing CSP or CORS policies.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

5.4 (Medium)


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

CWE

CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')

Assigner

VulnCheck

References

2 references

URL	Tags
https://github.com/theopaid/HTTP-Response-Splitti…	technical-descriptionexploit
https://www.vulncheck.com/advisories/rouille-http…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
tomaka	rouille	Affected: 0.4.0 , ≤ 3.6.2 (semver)

Date Public

2026-07-26 00:00

Credits

Theodosis Paidakis

Show details on NVD website

JSON

To clipboard

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            {
              "cweId": "CWE-113",
              "description": "Improper Neutralization of CRLF Sequences in HTTP Headers (\u0027HTTP Request/Response Splitting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
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          "tags": [
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          "url": "https://github.com/theopaid/HTTP-Response-Splitting-via-Unvalidated-Response-Header-Values-rouille-"
        },
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          "tags": [
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          "url": "https://www.vulncheck.com/advisories/rouille-http-response-splitting-via-header-injection"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
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      "tags": [
        "x_open-source"
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      "title": "Rouille 0.4.0 - 3.6.2 HTTP Response Splitting via Header Injection",
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  "cveMetadata": {
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    "cveId": "CVE-2026-66746",
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CVE-2026-66754 (GCVE-0-2026-66754)

Vulnerability from cvelistv5 – Published: 2026-07-28 16:04 – Updated: 2026-07-28 16:18 X_Open Source

Title

Rouille 0.1.6 - 3.6.2 Reachable Assertion DoS via remove_prefix percent-encoding

Summary

Rouille 0.1.6 through 3.6.2 contains a reachable assertion vulnerability in the Request::remove_prefix function that allows remote unauthenticated attackers to crash the server by sending a crafted percent-encoded URL. Attackers can send a request whose decoded path matches a configured prefix while the raw percent-encoded path does not, causing the assert! to fail and triggering either a 500 error or full process termination depending on the panic configuration.

Severity

8.2 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

5.9 (Medium)


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

CWE

CWE-617 - Reachable Assertion

Assigner

VulnCheck

References

2 references

URL	Tags
https://github.com/theopaid/Remote-Denial-of-Serv…	technical-descriptionexploit
https://www.vulncheck.com/advisories/rouille-reac…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
tomaka	rouille	Affected: 0.1.6 , ≤ 3.6.2 (semver)

Date Public

2026-07-26 00:00

Credits

Theodosis Paidakis

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "affected",
          "packageURL": "pkg:github/tomaka/rouille",
          "product": "rouille",
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        }
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      "metrics": [
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            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
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            "valueDensity": "NOT_DEFINED",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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            "userInteraction": "NONE",
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          "scenarios": [
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      "problemTypes": [
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8 vulnerabilities by tomaka

CVE-2026-67182 (GCVE-0-2026-67182)

CVE-2026-67181 (GCVE-0-2026-67181)

CVE-2026-66754 (GCVE-0-2026-66754)

CVE-2026-66746 (GCVE-0-2026-66746)

CVE-2026-67182 (GCVE-0-2026-67182)

CVE-2026-67181 (GCVE-0-2026-67181)

CVE-2026-66746 (GCVE-0-2026-66746)

CVE-2026-66754 (GCVE-0-2026-66754)

Find a vulnerability

Search criteria ⓘ Use this form to refine search results. Full-text search supports keyword queries with ranking and filtering. You can combine vendor, product, and sources to narrow results. Enable “Apply ordering” to sort by date instead of relevance.

8 vulnerabilities by tomaka

CVE-2026-67182 (GCVE-0-2026-67182)

CVE-2026-67181 (GCVE-0-2026-67181)

CVE-2026-66754 (GCVE-0-2026-66754)

CVE-2026-66746 (GCVE-0-2026-66746)

CVE-2026-67182 (GCVE-0-2026-67182)

CVE-2026-67181 (GCVE-0-2026-67181)

CVE-2026-66746 (GCVE-0-2026-66746)

CVE-2026-66754 (GCVE-0-2026-66754)

Search criteria ⓘ Use this form to refine search results.
Full-text search supports keyword queries with ranking and filtering.
You can combine vendor, product, and sources to narrow results.
Enable “Apply ordering” to sort by date instead of relevance.