undici vulnerable to CRLF Injection via blob-like body 'type' property
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| undici | undici | unaffected |
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Configuration 1 [-]
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| Package | CPE | Advisory | Released Date |
|---|---|---|---|
| Red Hat Hardened Images | |||
| nodejs26-main-26.5.1-1.5.hum1 | cpe:/a:redhat:hummingbird:1 | RHSA-2026:48273 | 2026-07-29T00:00:00Z |
| nodejs24-main-24.18.1-0.1.hum1 | cpe:/a:redhat:hummingbird:1 | RHSA-2026:48537 | 2026-07-30T00:00:00Z |
| Vendor | Product | Versions | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Undici | Undici |
|
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-m8rv-5g2x-5cg5 | undici vulnerable to CRLF Injection via blob-like body 'type' property |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.261% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat
Redhat hummingbird |
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| CPEs | cpe:/a:redhat:hummingbird:1 | |
| Vendors & Products |
Redhat
Redhat hummingbird |
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| References |
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| Metrics |
threat_severity
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threat_severity
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| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Undici
Undici undici |
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| Vendors & Products |
Undici
Undici undici |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | undici does not validate the type property of a duck-typed blob-like request body before using it as the Content-Type header on the HTTP/1.1 dispatcher. In undici before 6.28.0, from 7.0.0 up to before 7.29.0, and from 8.0.0 up to before 8.9.0, an application that passes a hand-rolled blob-like body (via request, stream, pipeline, or dispatch) whose type is derived from untrusted input allows an attacker to inject CRLF sequences and append arbitrary HTTP headers, potentially smuggling a second request past the upstream. Native Blob objects are safe because their constructor strips CRLF from the type, and fetch is unaffected because it validates headers, but ecosystem libraries that build duck-typed blob shapes from user input can reach the vulnerable path. This is the same defect class as CVE-2022-35948 and CVE-2026-1527, on a header sink that the earlier fixes did not cover. The issue is fixed in undici 6.28.0, 7.29.0, and 8.9.0. | |
| Title | undici vulnerable to CRLF Injection via blob-like body 'type' property | |
| Weaknesses | CWE-93 | |
| References |
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| Metrics |
cvssV3_1
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