An authenticated attacker could exceed the session flow control incoming window potentially 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.
{
"cwe_ids": [
"CWE-770"
],
"unresolved_ranges": [
{
"source": "AFFECTED_FIELD",
"extracted_events": [
{
"last_affected": "1.1.0"
}
]
},
{
"source": "DESCRIPTION",
"extracted_events": [
{
"fixed": "1.1.0"
}
]
}
],
"cna_assigner": "apache",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67591.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.2.0"
}
],
"cpe": "cpe:2.3:a:apache:qpid_protonj2:*:*:*:*:*:*:*:*",
"source": "CPE_RANGE"
}