CVE catalog

CVE-2026-116542

netty-tcnative: CVE-2026-116542

[CVE catalog]

Severity
Medium
Published
Source
[NVD] · [CVE record]

Netty netty-tcnative before 2.0.84.Final contains an SNI hostname spoofing vulnerability that allows remote unauthenticated clients to alter hostnames via JNI NewStringUTF decoding. Attackers can send overlong encodings like 0xC0 0x80 in the ClientHello server_name to confuse SNI-based certificate selection, access decisions, and logging.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debiannetty-tcnativesid2.0.28-1vulnerable
Debiannetty-tcnativeforky2.0.28-1vulnerable
Debiannetty-tcnativetrixie2.0.28-1vulnerable
Debiannetty-tcnativebookworm2.0.28-1vulnerable

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debiannetty-tcnativesourcesid(unfixed)not yet assignedNot reported[1152301]
Debiannetty-tcnativesourceforky(unfixed)not yet assignedNot reported[1152301]
Debiannetty-tcnativesourcetrixie(unfixed)not yet assignedNot reported[1152301]
Debiannetty-tcnativesourcebookworm(unfixed)not yet assignedNot reported[1152301]

[Debian bug #1152301]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [libnetty-tcnative-java]Affected

    Source package: [netty-tcnative]

    Details (2)

    • 2.0.28-1 · all · bookworm

      Affected

      dsa · netty-tcnative · debian · bookworm; dsa · netty-tcnative · debian · 12

    • 2.0.28-1 · all · bookworm

      Affected

      dsa · netty-tcnative · debian · bookworm; dsa · netty-tcnative · debian · 12

  • [libnetty-tcnative-jni]Affected

    Source package: [netty-tcnative]

    Details (2)

    • 2.0.28-1+b1 · amd64 · bookworm

      Affected

      dsa · netty-tcnative · debian · bookworm; dsa · netty-tcnative · debian · 12

    • 2.0.28-1+b1 · arm64 · bookworm

      Affected

      dsa · netty-tcnative · debian · bookworm; dsa · netty-tcnative · debian · 12

[Debian 13 (Trixie)]

  • [libnetty-tcnative-java]Affected

    Source package: [netty-tcnative]

    Details (2)

    • 2.0.28-1 · all · trixie

      Affected

      dsa · netty-tcnative · debian · 13

    • 2.0.28-1 · all · trixie

      Affected

      dsa · netty-tcnative · debian · 13

  • [libnetty-tcnative-jni]Affected

    Source package: [netty-tcnative]

    Details (2)

    • 2.0.28-1+b2 · amd64 · trixie

      Affected

      dsa · netty-tcnative · debian · 13

    • 2.0.28-1+b3 · arm64 · trixie

      Affected

      dsa · netty-tcnative · debian · 13

Observed:

References

[Debian Security Tracker] · [OSV Package Vulnerability Database]