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ALPINE-CVE-2019-16254

ALPINE-CVE-2019-16254 PUBLISHED CVSS 5.300000190734863 MEDIUM

Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows HTTP Response Splitting. If a program using WEBrick inserts untrusted input into the response header, an attacker can exploit it to insert a newline character to split a header, and inject malicious content to deceive clients. NOTE: this issue exists because of an incomplete fix for CVE-2017-17742, which addressed the CRLF vector, but did not address an isolated CR or an isolated LF.

Risk Scores

CVSS v3.1
5.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected Products

VendorProductVersions
Alpine:v3.14ruby1.9.3_p286-r0, 1.9.3_p286-r1, 1.9.3_p286-r2
Alpine:v3.12ruby2.5.3-r1, 0, 1.8.7_p160-r2
Alpine:v3.20ruby0, 0, 0
Alpine:v3.11ruby2.5.3-r2, 2.6.4-r0, 2.6.3-r2
Alpine:v3.17ruby1.8.7_p72-r1, 1.9.3_p194-r0, 1.9.3_p286-r0
Alpine:v3.22ruby0, 0, 0
Alpine:v3.21ruby0, 0, 0
Alpine:v3.8ruby2.2.1-r0, 2.1.5-r1, 2.1.5-r0
Alpine:v3.19ruby2.0.0_p353-r1, 0, 1.8.7_p160-r2
Alpine:v3.18ruby1.8.7, 1.8.7, 1.8.7
Alpine:v3.10ruby1.9.3_p362-r0, 2.5.5-r0, 2.5.3-r2
Alpine:v3.9ruby1.9.3_p286-r0, 0, 1.8.7_p160-r2
Alpine:v3.7ruby1.8.7_p174-r3, 0, 1.8.7_p160-r2
Alpine:v3.23ruby0, 0, 0
Alpine:v3.13ruby2.5.0-r0, 2.2.3-r0, 2.5.1-r0
Alpine:v3.16ruby2.5.3-r2, 2.6.4-r0, 2.6.3-r2
Alpine:v3.15ruby1.9.3_p286-r2, 1.9.3_p194-r0, 1.9.3_p286-r0

Timeline

  • Nov 26, 2019 CVE Published
  • Dec 3, 2025 CVE Updated
  • Apr 30, 2026 Distribution Patch
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