morgan vulnerable to Log Forging via unneutralized control characters in :remote-user

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-5078 · CVE overview and exploitation status

EUVD-2026-34067

GHSA-4vj7-5mj6-jm8m

cve-program · CVE-2026-5078

• https://github.com/expressjs/morgan/security/advisories/GHSA-4vj7-5mj6-jm8m
• https://cna.openjsf.org/security-advisories.html

euvd · EUVD-2026-34067

• https://github.com/expressjs/morgan/security/advisories/GHSA-4vj7-5mj6-jm8m
• https://cna.openjsf.org/security-advisories.html

nvd · CVE-2026-5078

• https://cna.openjsf.org/security-advisories.html
• https://github.com/expressjs/morgan/security/advisories/GHSA-4vj7-5mj6-jm8m

osv · GHSA-4vj7-5mj6-jm8m

• https://github.com/expressjs/morgan/security/advisories/GHSA-4vj7-5mj6-jm8m
• https://nvd.nist.gov/vuln/detail/CVE-2026-5078
• https://cna.openjsf.org/security-advisories.html
• https://github.com/expressjs/morgan

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