on-headers vulnerable to http response header manipulation
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| jshttp | on-headers | unaffected |
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| Source | ID | Title |
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EUVD |
EUVD-2025-21784 | on-headers is vulnerable to http response header manipulation |
Github GHSA |
GHSA-76c9-3jph-rj3q | on-headers is vulnerable to http response header manipulation |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.206% probability within 30 days)
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threat_severity
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threat_severity
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ssvc
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| Description | on-headers is a node.js middleware for listening to when a response writes headers. A bug in on-headers versions `<1.1.0` may result in response headers being inadvertently modified when an array is passed to `response.writeHead()`. Users should upgrade to version 1.1.0 to receive a patch. Uses are strongly encouraged to upgrade to `1.1.0`, but this issue can be worked around by passing an object to `response.writeHead()` rather than an array. | |
| Title | on-headers vulnerable to http response header manipulation | |
| Weaknesses | CWE-241 | |
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| Metrics |
cvssV3_1
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