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cve.nowby Sazabi
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org.apache.qpid:protonj2

5 known vulnerabilities (4 high, 1 medium), with the versions each affects and the releases that fix them.

Latest release
1.4.0 (Oct 10, 2026): no advisory affects it
Newest unaffected release
1.4.0 (Oct 10, 2026), the latest release
Advisories
5 · 4 high, 1 medium
Dependents
22
Releases
28 since 1.0.0 (Aug 25, 2025)
Registry
Maven Central
Releases read
Nov 8, 2026

Version timeline

Every release cve.now has on record, lowest version on the left; each bar is a run of versions an advisory affects.

Advisories 5

  • Apache Qpid ProtonJ2: Unable to govern the maximum number of transfer frames per incoming delivery

    Affected: through 1.1.0.

    Fixed in 1.2.0 (released Jul 31, 2026, 5 days before disclosure), the first release outside every affected range (no listed fixed version clears them all).

    The latest release, 1.4.0, is not affected.

  • CVE-2026-67591Medium 6.5

    Apache Qpid ProtonJ2: Incoming session flow control window can be exceeded

    Affected: through 1.1.0.

    Fixed in 1.2.0 (released Jul 31, 2026, 5 days before disclosure), the first release outside every affected range (no listed fixed version clears them all).

    The latest release, 1.4.0, is not affected.

  • Apache Qpid ProtonJ2: Unbounded type nesting can lead to pre-authentication stackoverflow

    Affected: through 1.1.0.

    Fixed in 1.2.0 (released Jul 31, 2026, 5 days before disclosure), the first release outside every affected range (no listed fixed version clears them all).

    The latest release, 1.4.0, is not affected.

  • Apache Qpid ProtonJ2: Type size/count handling can lead to excessive allocation pre-authentication

    Affected: through 1.1.0.

    Fixed in 1.2.0 (released Jul 31, 2026, 5 days before disclosure), the first release outside every affected range (no listed fixed version clears them all).

    The latest release, 1.4.0, is not affected.

  • Apache Qpid ProtonJ2: Unbounded symbol value caching can lead to pre-authentication resource exhaustion

    Affected: through 1.1.0.

    Fixed in 1.2.0 (released Jul 31, 2026, 5 days before disclosure), the first release outside every affected range (no listed fixed version clears them all).

    The latest release, 1.4.0, is not affected.