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CVE-2025-67735

CVE-2025-67735 · Netty has a CRLF Injection vulnerability in io.netty.handler.codec.http.HttpRequestEncoder

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.129.Final and 4.2.8.Final, the `io.netty.handler.codec.http.HttpRequestEncoder` has a CRLF injection with the request URI when constructing a request. This leads to request smuggling when `HttpRequestEncoder` is used without proper sanitization of the URI. Any application / framework using `HttpRequestEncoder` can be subject to be abused to perform request smuggling using CRLF injection. Versions 4.1.129.Final and 4.2.8.Final fix the issue.

CVSS 6.5 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • netty

    Versions
    • >= 4.2.0.Alpha1, < 4.2.8.Final: Affected
    • < 4.1.129.Final: Affected

    No fix published

  • netty Debian:12

    Versions
    • 1:4.1.48-7
    • 1:4.1.48-7+deb12u1
    Affected ranges
    • ECOSYSTEM: < 1:4.1.48-7+deb12u2

    Update to 1:4.1.48-7+deb12u2

  • netty Debian:13

    Versions
    • 1:4.1.48-10
    Affected ranges
    • ECOSYSTEM: < 1:4.1.48-10+deb13u1

    Update to 1:4.1.48-10+deb13u1

  • netty Debian:14

    Versions
    • 1:4.1.48-10
    • 1:4.1.48-11
    • 1:4.1.48-12
    • 1:4.1.48-13
    • 1:4.1.48-14
    • 1:4.1.48-15
    Affected ranges
    • ECOSYSTEM: < 1:4.1.48-16

    Update to 1:4.1.48-16

  • netty Ubuntu:Pro:14.04:LTS

    Versions
    • 1:3.2.6.Final-2
    • 1:3.2.6.Final-2+deb8u2build0.14.04.1~esm1
    • 1:3.2.6.Final-2+deb8u2ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • netty Ubuntu:Pro:16.04:LTS

    Versions
    • 1:3.2.6.Final-2
    • 1:4.0.32-1
    • 1:4.0.33-1
    • 1:4.0.34-1
    • 1:4.0.34-1ubuntu0.1~esm1
    • 1:4.0.34-1ubuntu0.1~esm2
    • 1:4.0.34-1ubuntu0.1~esm3
    • 1:4.0.34-1ubuntu0.1~esm4
    Affected ranges
    • ECOSYSTEM: < 1:4.0.34-1ubuntu0.1~esm5

    Update to 1:4.0.34-1ubuntu0.1~esm5

  • netty Ubuntu:Pro:18.04:LTS

    Versions
    • 1:4.1.7-4
    • 1:4.1.7-4ubuntu0.1~esm1
    • 1:4.1.7-4ubuntu0.1
    • 1:4.1.7-4ubuntu0.1+esm1
    • 1:4.1.7-4ubuntu0.1+esm2
    • 1:4.1.7-4ubuntu0.1+esm3
    • 1:4.1.7-4ubuntu0.1+esm4
    • 1:4.1.7-4ubuntu0.1+esm5
    • 1:4.1.7-4ubuntu0.1+esm6
    Affected ranges
    • ECOSYSTEM: < 1:4.1.7-4ubuntu0.1+esm7

    Update to 1:4.1.7-4ubuntu0.1+esm7

  • netty Ubuntu:Pro:20.04:LTS

    Versions
    • 1:4.1.33-1
    • 1:4.1.33-2
    • 1:4.1.33-3
    • 1:4.1.45-1
    • 1:4.1.45-1ubuntu0.1~esm1
    • 1:4.1.45-1ubuntu0.1~esm2
    • 1:4.1.45-1ubuntu0.1~esm3
    • 1:4.1.45-1ubuntu0.1~esm4
    • 1:4.1.45-1ubuntu0.1~esm6
    Affected ranges
    • ECOSYSTEM: < 1:4.1.45-1ubuntu0.1~esm7

    Update to 1:4.1.45-1ubuntu0.1~esm7

  • netty Ubuntu:22.04:LTS

    Versions
    • 1:4.1.48-4
    • 1:4.1.48-4+deb11u1build0.22.04.1
    • 1:4.1.48-4+deb11u2build0.22.04.1
    • 1:4.1.48-4+deb11u2ubuntu0.1
    Affected ranges
    • ECOSYSTEM: < 1:4.1.48-4+deb11u2ubuntu0.2

    Update to 1:4.1.48-4+deb11u2ubuntu0.2

  • netty Ubuntu:Pro:22.04:LTS

    Versions
    • 1:4.1.48-4
    • 1:4.1.48-4+deb11u1build0.22.04.1
    • 1:4.1.48-4+deb11u2build0.22.04.1
    • 1:4.1.48-4+deb11u2ubuntu0.1~esm1
    • 1:4.1.48-4+deb11u2ubuntu0.1~esm2
    • 1:4.1.48-4+deb11u2ubuntu0.1
    • 1:4.1.48-4+deb11u2ubuntu0.1+esm1
    • 1:4.1.48-4+deb11u2ubuntu0.1+esm3
    • 1:4.1.48-4+deb11u2ubuntu0.2
    Affected ranges
    • ECOSYSTEM: < 1:4.1.48-4+deb11u2ubuntu0.2+esm1

    Update to 1:4.1.48-4+deb11u2ubuntu0.2+esm1

  • netty Ubuntu:24.04:LTS

    Versions
    • 1:4.1.48-7
    • 1:4.1.48-8
    • 1:4.1.48-9
    • 1:4.1.48-9ubuntu0.1
    Affected ranges
    • ECOSYSTEM: < 1:4.1.48-9ubuntu0.2

    Update to 1:4.1.48-9ubuntu0.2

  • netty Ubuntu:Pro:24.04:LTS

    Versions
    • 1:4.1.48-7
    • 1:4.1.48-8
    • 1:4.1.48-9
    • 1:4.1.48-9ubuntu0.1~esm1
    • 1:4.1.48-9ubuntu0.1~esm2
    • 1:4.1.48-9ubuntu0.1
    • 1:4.1.48-9ubuntu0.1+esm1
    • 1:4.1.48-9ubuntu0.1+esm3
    • 1:4.1.48-9ubuntu0.2
    Affected ranges
    • ECOSYSTEM: < 1:4.1.48-9ubuntu0.2+esm1

    Update to 1:4.1.48-9ubuntu0.2+esm1

  • netty Ubuntu:25.10

    Versions
    • 1:4.1.48-10
    • 1:4.1.48-10ubuntu0.25.10.1
    • 1:4.1.48-10ubuntu0.25.10.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • netty Ubuntu:26.10

    Versions
    • 1:4.1.48-16
    • 1:4.1.48-16ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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