CVE-2025-7339

LOW

3.4

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.

CVE Details

CVSS v3.1 Score3.4

SeverityLOW

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

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredHIGH

User InteractionNONE

Published7/17/2025

Last Modified7/17/2025

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-241

References

https://cna.openjsf.org/security-advisories.html(ce714d77-add3-4f53-aff5-83d477b104bb)

https://github.com/expressjs/morgan/issues/315(ce714d77-add3-4f53-aff5-83d477b104bb)

https://github.com/jshttp/on-headers/commit/c6e384908c9c6127d18831d16ab0bd96e1231867(ce714d77-add3-4f53-aff5-83d477b104bb)

https://github.com/jshttp/on-headers/issues/15(ce714d77-add3-4f53-aff5-83d477b104bb)

https://github.com/jshttp/on-headers/security/advisories/GHSA-76c9-3jph-rj3q(ce714d77-add3-4f53-aff5-83d477b104bb)

IOC Correlations

No correlations recorded

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