CVE-2026-67588 — Apache Qpid ProtonJ2: Unbounded symbol value caching can lead to pre-authentication resource exhaustion

CVE-2026-67588

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

Description (CNA)

A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to denial of service. This issue affects Apache Qpid ProtonJ2: through 1.1.0. Users are recommended to upgrade to version 1.2.0, which fixes the issue.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Qpid ProtonJ2	affected 0 through 1.1.0

CWE

CWE-770

References

https://lists.apache.org/thread/vk4j02dzggfdrdkwvzmqo4jro2tgj0jt

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/08/04/27

CISA-ADP

No English description supplied.

No references supplied.